PrimusRibbus: Ahhh, Thats reassuring to known. Slower pace i'm sure I would be able to get used too. From your personal experience did you enjoy it? Was it fluid? No strange happenings? Also you didnt happen to see which model they where using?
I've personally used XFrag and Max Shooter (which may have been the same product rebranded), and one of the FragFX mouse/controller combos.
The XFrag/Max Shooter did improve my gameplay thanks to the ease of access that the keyboard provided, but they were not particularly enjoyable to use. The mouse made movement feel like it was underwater, and it was frustratingly unfluid.
The upside is that you can find them really cheap. $30ish retail in most online stores, and it's not uncommon to find them in the $10-$15 range on eBay and elsewhere.
I wasn't too impressed, but I have a couple friends who love them.
I really don't have anything good to say about the FragFX. I used a FragFX Pro, and it made the XFrag/Max Shooter feel high quality. The mouse is just plain abysmal for responsiveness, and the novelty of the Wii-like controller wears off quickly.
I have heard very good things about the Eagle Eye and the XIM3, though. From what I understand, the "underwater feeling" of the low quality M/KB adapters is because they don't compensate for deadzones, sticky reticles, aim-assist or anything like that (another problem being that all those factors are different from game to game; for example, Halo has a square deadzone, while CoD has a round deadzone). Higher quality adapters like the Eagle Eye, XIM3 have a CPU built in that compensate for the effect of those factors, and supposedly results in a much more fluid experience.
Be warned, though, you will need a mouse with at least 1600dpi to get the full experience from these adapters (from what I understand, the sweet spot for DPI is between 1600 and 1800).
The downside, of course, is that they cost a lot more.
There's also the Aimon mouse/controller combos, but I don't know anyone who's tried one.