They are my EU shop of choice. I go there when I think the US version of a game is going to get censored in some manner or if I want a DVD edition of an otherwise CD based game.
Like others have mentioned, their 48 hour madness deals are amazing as are their dual jewel packs, which contained freespace, fallout and other awesome games in $5-$10 bundles.
When I can't find something on ebgames.com, it is the first place I go.