Had some issues with Amazon sub not pairing and that issue has been resolved with the assistance of a Amazon support assistant and I'll give great credit for the response to my original criticism for the pairing issues that I had with Echo and Sub. Still disappointed that I cannot stereo pair my 2nd and 3rd Gen Echo's with my sub and it is unfortunate that purchasers are not made more aware of that situation. Despite that issue all speakers sound and operate nicely and voice features are improving over time. I'd certainly recommend Echo devices for build and sound quality and also feature set. It's likely that I'll invest in another 3rd Gen Echo in the future to complete the stereo pairing with sub and reposition Echo Gen 2 to another area.