I researched for about a year. I am a Bose enthusiast but with the way Bose abandons their old technology I was not willing to invest in them. I have found the Sonos speakers mediocre sounding and limited in usefulness. I'm not happy with them but I've made an investment in two rooms so I'll hang in there, for now. I was planning on two more rooms and a subwoofer for my TV soundbar but that is on hold for the foreseeable future.
Theo Move replaced a Play 5 in a small room. I prefer the sound of the Move over the Play 5 by a small margin. However the Play 5 has more output and I think more base. The portability of the Move makes it a winner for me. I haven't exhausted the battery yet during use as the most it's been used off the dock has been about 3.5 hours and it still had about 60% left.