I cannot recommend this more. I have had one for a few years now and it's great. Easy setup, will work with your NAS, it hooks into lots of streaming services if that's your thing (may vary by location though, I'm in the US). You don't have to be a geek to use it either so it's easy for people regardless of their technical prowess to use. They have 3 types of "zones" 1 is totally independent with a speaker built in, 1 is a zone that plugs into an existing sound system, and 1 has an amp built in so you just attach speakers.
I cannot recommend this more. I have had one for a few years now and it's great. Easy setup, will work with your NAS, it hooks into lots of streaming services if that's your thing (may vary by location though, I'm in the US). You don't have to be a geek to use it either so it's easy for people regardless of their technical prowess to use. They have 3 types of "zones" 1 is totally independent with a speaker built in, 1 is a zone that plugs into an existing sound system, and 1 has an amp built in so you just attach speakers.