TL/DR: this product has so much great potential, and as an entry-level home-theater soundbar (HDMI/ARC) it is superb. Where it fails (badly) is in the Alexa integration.Sound quality is exceptional for a budget sound bar. I am using it with the React subwoofer (the only sub you can use it with), and the sound is well above average in this segment, and exceptional for the price, especially at Amazon Warehouse prices. Definitely punching above its weight in this price category. Sound is superior to the comparable Sonos and Bose (yes, really) units, which surprised me. This was also significantly less expensive than either, and would be very good value if it worked the way any Alexa-enabled speaker should, which it sadly does NOT. I picked it up from Amazon warehouse for under a hundred bucks. Scored the sub for a little over that. A very good deal. ...And now I know why.It sure would have been nice if somewhere in the product description they would have pointed out that this device DOES NOT SUPPORT APPLE MUSIC OR SIRIUS XM. The description states: "React enjoys the deepest Alexa integration in the sound bar category." This is simply not the case - common apps are disabled and do not function. This is not "deep integration". Commonly-used apps which work on other Echo devices are intentionally disabled by the manufacturer. Not cool, Polk.It is in fact, extremely uncool. All the returns resulting in lots of used purchase options make sense.I bought this to replace a dying Echo device with something with better sound. I did not purchase it for home theater purposes (I already have a home theater setup with polk audio floorstanding loudspeakers). I simply wanted an Alexa-enabled device to use like an Echo, but with more oomph for listening to music. This seemed like a great alternative solution. I love being able to use my voice to control Apple Music on other Alexa devices. Unfortunately Polk Audio seems to have a relationship with Spotify (they suggest using Spotify right in the user manual) which precludes allowing Apple music to function natively on this device, even though it is configured to do so in the Alexa app.The device issues an Apple Music-specific error when you ask it to play something from Apple Music: "Apple Music is not supported on this device". I have included a video of the device issuing this hard stop message. I am knocking 2 stars off because Polk Audio (of whom I am otherwise a huge fan), has intentionally configured this device's firmware to prevent it from playing Apple Music, and has stated in an email to me they will not enable it. So uncool.Here is Polk's official response to the Apple Music issue after wasting hours on the phone with several different "support technicians", and email correspondence with a senior tech. Note that NONE of them had a clue what they were talking about, and all initially expressed surprise it did not work."As per further checking, the Polk React Soundbar is not compatible with both Apple Music on the Amazon Alexa Application Skilling and Apple Airplay. The only way it can play Apple Music as a source is through wireless bluetooth connection. It does support Spotify Connect and should play music content or source using the said application." (*Note: I do not use Apple AirPlay, but if you do, you are apparently also hosed.)It also cannot seem to play Sirius XM, despite relinking my account in the Alexa app twice. It tries and fails to play, resulting in about ten seconds of silence followed by another frustrating error message. These services both work on my other Echo devices. What good is an Alexa-enabled speaker that can't play Apple Music or Sirius XM stations? Polk audio just went down a notch in my books. The video I added demonstrates both errors, the XM error first, then the Apple Music error. Knocking another star off forgo XM Support. Lost another star for this. We're down to TWO stars now.I am knocking an additional star off for three unrelated technical issues:1) Despite the fact that it *looks* like there is an Echo Dot nestled in the middle of the soundbar, this is NOT the case. Polk is simply mimicking the look of the top of an Echo dot. The microphone inside is NOWHERE NEAR near as good. Even a first-gen dot can hear me in another room 30 feet away when I speak normally. The mic in this device does not offer that level of performance. Standing in the kitchen, 20 feet from the React soundbar, I asked it to tell me the weather. It did not respond--but the first-gen Echo Dot in another room about 30 feet away did (it continues to surprise me with how well it works, 8 years after I bought it). This is a persistent issue. The mic in this soundbar just sucks. Disappointing.2) Initial setup in the Alexa app failed the first time each time I had to do it, once when I first unboxed and set it up, and again when the Polk tech asked me to factory reset it. The second attempt worked in both cases. Be patient - it will work the second time.3) The soundbar seems to occasionally have issues staying connected to my Wi-Fi, despite being located THREE INCHES from the router (see photos) . This has happened once per day for a short period of time since I got it. It self-corrects in a few minutes. Frustrating.Due to all these issues, the remaining one lonely star is all there is left, and it is solely attributed to sound quality: this thing sounds GOOD. When paired with the sub, it would make a fantastic entry-level home theater setup. If only it could actually play the only two music services I actually use...To be clear, you are able to stream to the soundbar from a phone or tablet via Bluetooth if you want to play Apple Music or Sirius XM that way - you just cannot use your voice to control it. Native Alexa functionality in the soundbar for these apps is simply disabled. I hope Polk Audio sees this review and makes the choice to issue an over-the-air update (this device is capable of receiving them) enabling Apple Music and Sirius XM. If they ever do, I will update this review and add the deducted stars related to this issue back in. At this time, Polk has officially told me they will not be doing this, so chances of this are essentially zero.In summary, this product has so much great potential, and as an entry-level home-theater soundbar it is superb. Where it fails (badly) is in the Alexa integration. If you are buying it for this, you will be disappointed. If you are looking for something to use with your home theater setup, and you do not mind streaming audio (music) to it from another source (or if you have Amazon Music, Spotify, or Tidal), you will be delighted at the excellent sound quality. In fact, this setup has so much potential giving it a one-star review just feels unfair, so out of sheer mercy I added a second star back in: two stars.Not recommended if you were hoping to stream Apple music or Sirius XM from it. Not recommended if you are expecting Echo-like far-field microphone performance--not happening. Otherwise great for home theater (HDMI/ARC) use.