I've just started listening to music through Spotify. I was reluctant to use it for a long time because I've used Pandora in the past and wasn't that impressed. I like Spotify a lot better, though. You can search for artists and it will play music by that artist, whereas Pandora will just create a station with other artists "like" the one you searched for.
I'm digging the sound quality, man. I don't feel like there's any loss of quality from streaming. It never lags either, like from buffering or anything like that. My only complaint is that the free version comes with ads and the ads play louder than the music does. It doesn't bother me enough to pay ten a month for the ad-free premium membership, though.
No problem. I don't know if you are into video games/consoles, but Xbox One and PS4 both have Spotify apps; that's how we listen in some of the rooms of the house that don't have component stereos.
I love using Spotify. I found this app about five months ago and I really like how it allows you to download full albums and listen to your favorite bands that way. I still do listen to Pandora when I want more of a radio feel, but when I am in the mood to listen to my favorite band, Spotify is the way to go!