GMIrrlicht is a very powerful tool for Game Maker users and has amazing potential. However, GM users apparently just can't find any use for it. I kinda get where a lot of the GM users are coming from, though. GM is a 2D engine and can't do 100% 3D games as well as a 3D game engine.
I'm probably one of the only few seriously using this DLL judging by how many people responded to it in it's thread at the GM forums. I'm trying to make a 2D/3D combo game with GMIrrlicht. I would really appreciate it if I could find some others who had some experience with the DLL. Maybe I'll look up that Xception guy.