I have been an Echo nerd for a while, having set up a stereo system some time ago with the original Echo Plus devices. I always wanted to move towards the Studio at some point.I originally purchased a single Studio and linked it to my Fire TV Cube and was surprised at the quality of the sound, particularly the sense of immersion into the soundstage. The Studio is a substantial bit of kit, much bigger than the Echo it replaced and a lot heavier as well.Once the room scanning process had completed, it was a breeze to link to my Cube and set up in the app. The sound is detailed and crisp with a pleasant bass to it. The single studio did surprise me in its ability to give the impression of a stereo set up, but I knew that I wanted a bigger stage.I waited until there was a substantial price drop and purchased both a second Studio and also the Echo Sub.Good Points - the pairing process and setting up the new expanded cinema audio system was really easy to do. The Alexa app coupled with a video on the support page meant it was simple and intuitive.Being able to use the Alexa remote control to manage volume just works. I have everything set up on the Alexa remote, so my TV, Cube and sound are all controlled off one item. I am thinking to get the professional remote on prime day as I love the idea of light up buttons (geek).The bass provided by the sub is unbelievable. Where you need the bass - explosions, engines etc - the room simply moves and you can feel it in your chest. I ended up turning it down slightly as it was almost too overpowering.The music playback (I have Amazon Music Unlimited) is absolutely fantastic. The HD tracks are detailed, balanced and clear. OK, so a full on audiophile set up would probably be better, but then that would involve having high end components and speaker stands. I suspect that if I could position the current Studio speakers differently and put them on stands the sound would be even better.Volume on music playback is very very loud.The bad - It would be nice if Amazon would consider expanding the number of supported devices in a home cinema set up. To be able to add a couple of Echos at the back of the room to get 5:1 sound would be awesome and surely wouldn't be too hard to do?Playback from the TV is rather quiet depending on what you are streaming. I often find I have turned the volume up to 75% which can be a bit of a shock when you quit home cinema streaming and go back to music. Apparently this is a common issue and noone has managed to come up with a solution.I used to get situations where the sound would drop out when the Cube was waking up from sleep mode. This required the Cube to be restarted, whereupon the sound would once again connect. I haven't had this issue for months now so I can only assume it has been sorted in a software upgrade.Overall I am massively impressed. The quality rivals a bespoke home cinema set up yet is wireless. You also get all the benefits of the Alexa infrastructure. I have a lot of echo devices so being able to call and drop in is useful. I also have smart heating and it is great to be able to tell Alexa to alter the temperature.All in all I think the Studio is a brilliant investment. I am only dreading when Amazon eventually release an updated version as upgrading will be a costly process.