I've had one for about 2 years...the shock towers are weak (go with CF)....the drive axles get sloppy really quick (MIP cvd's are a good fix)...the rear axle carriers are suspect (get extras)...the tranny is bullet proof...the stock tires are lousy (most are)...Mine was the Pro .15 engine, but any .12-.18 size will fit. I have a Hot Bodies .18 in mine with very little modification.
As far as handling, it has a terrible push, but you can get most of it out with some setup. Losi shock springs fit it...try the green ones in back, if you're not trying to jump a house.