I bought this Bluetooth speaker to conveniently listen to jazz and classical music while at home. I found the sound quality pleasant. It has a kind of rounded or distant sound, which never sounds tinny but also never sounds sharp like you are in the room with the performers. I tried listening to a video or making a speaker call, and the lack of sharpness is a definite draw back then. Better off using phone speaker for speech, but for music it's nice to be able to increase the volume without a tinny sound.
Works with my phone, sounds good, but I really got it to work with my Samsung 4k tv in the bedroom, so I can hear the sound without blasting my tv speakers so loud, but it doesn't work with the tv. Will pair, but then goes into "reconnecting" mode right away. The tv works well with a shower speaker I have. But that speaker sound isn't as good.