Here's the rctech thread:
I have one, but am not a buggy expert. But I can say:
Buy the slipper clutch to save the gears.
Buy universals to replace all 4 dogbones. There is so much suspension travel the dogbones can and do pop out.
I've heard people complain about the shocks, but I haven't had problems.
Probably should buy a selection of springs to adjust the ride.
Also, the chassis is small. You'll probably need a small ESC.
Hope I didn't scare you away, but that's what I've experienced.