I have one, its nice, fast, electrics are waterproofed, but the center drive shaft is open in the front and water and grit gets in there, and around the slipper clutch spring and bearing, i had that bearing seize right up solid, though i did get it running smooth again, removed seals blasted penetrating fluid in there wiggle with pliers, then I filled it with thick grease to help prevent water getting in. I havn't broken mine but my front left axle is bent a bit so the wheel wobbles now, and there have been a lot of breakage stories so far, most are probably related to cold weather making the plastic brittle or uncareful driving, regardless RPM will make signifigantly harder to break replacement parts eventually lol.
The radio is nice, but they skimped not putting even a small lcd screen on it. My friends hate it but i find the tq radios really comfortable.
The front knuckles/castor blocks seem a little too flexible, im going to get the aluminum ones asap.
Honestly, I prefer my Hyper 10sc and I REALLY wanted to like the 4x4 Slash and i do like it, but I think it'll be my basher and the Hyper will be my track truck.