Hey, to get parts for this truck i recommend
http://www.auctioncityaustralia.com....are-parts.html .They ship to USA.
I cant tell yet if there are any major downfalls, because the time ive had my Mad Truck i havnt had any major problems. Exept one time when i was going really fast and i crashed my front right wheel into a big rock, that broke the servo, but it was a easy fix.