Emulaxian / 3dAracade:
In a word, amazing. It's the most complete and advanced front end available. I've tried many different fe's and this is the one I will be staying with.
Pros: create an actual 3-dimensional representation of an arcade, complete with accurate game models. As you wander through the virtual arcade it's like you're really there. Watch your friends' jaws drop. It's completely skinnable, and has a built-in configuration utility. There isn't much it can't do. Peter has been incredibly helpful with technical advice and bug fixes.
Cons: It is a real bear to set up. Even with the config utility expect to spend several days reading through the documentation and asking questions before you get it working the way you want. There is a very helpful tutorial included, but if you aren't a patient person this fe will drive you crazy. There is an unfortunate lack of custom skins available, but you can always design your own.
-Ace-