Very easy to assemble and tune, world class handler right out of the box. Get a Hudy setup jig for fine-tuning. Like any other 1/8-scale .21-powered on-road car tire choice is critical. I have a Collari XS2100 in mine, not as powerful as a C5 or equivalent but plenty fast enough for me. Keep spare parts on hand, of course: arms, bulkheads, belts...and plenty of tires, of course!