Hoopla seems okay for people who listen to a lot of mainstream stuff. I've never actually heard about it before now or used it so everything I say is just coming straight out my ass, but, it seems their library is very limited. Orpheus has a very extensive library with almost everything on there having a lossless flac version. It's still nothing compared to Soulseek, but as long as you're into bands/artists with more than 5 listeners in their lifetime, you'll be able to find everything. It all just comes down to what you're looking for though.