I gotta say, Brutal Doom is a heck of a thing and really fun and interesting and REALLY changes up the Doom gameplay to be more tactical and fun (if more challenging), but ... there's something really nice about playing Doom in a Super Mario 64 themed world where you gotta explore and find coins and platform a lot and... aaaa.
It's a little barebones in the first one, but apparently the second is even better. Can't wait :D