I've been testing Attract Mode and the grid layout. It's a quite complicated program, because you have to deal with the code if you want to tweak most things. However, that's at the same time its strength, because that makes it very powerful and full of possibilities.
If you have any experience with it, do you know if it's possible to modify it so as to have the games names under every snapshot and not just a common line where the game appears when you select a thumbnail? If that's not possible, I think I'll have to stick with EmuLoader or look further.