The few reviews on them look very mixed. They use cheap Phillips head screws for most of the RC car and have had other manufacturing problems, it seems from the older reviews. Newer reviews seem to give them flying colors though, so they may be okay. Also, could I possibly interest you in carrying Venom/Atomik RC products at your shop? If you would ever like that, PM me and I will get you in touch with the right people.
Reviews in point.
Bad;
http://www.ultimaterc.com/forums/sho...d.php?t=185324
Good;
http://www.rccaraction.com/members/2...-blast-tx-2-2/
Good (most likely biased though);
http://www.rcracer.com/2010/03/the-o...-bx-rtr-buggy/