They occasionally have decent stuff but they're mostly a receptacle for Eastern European shovelware. It's telling when like, half the games on their site are made post 2003 and are fucking awful.
I think the reason there's a lot of Euro stuff is that CD Projekt is based out of Poland, and they own GOG. I wasn't a fan of the stunt, but I do love GOG, so I'm glad they got Baldur's Gate.