I run the older RC8 FT, and it's very tough and reliable.. As with truggies, there are big advantages to running popular brands like AE and Losi - specifically, part supply.. I race mostly my RC8T and use the buggy for practice and breaking in engines, etc.. - but I love how so many parts are interchangeable... Don't know about the new B buggy, but in the others the diffs are even identical to the ones from the TT ST-1 - a truck with a notoriously bulletproof drivetrain.. So anyway, I run AE, and am thoroughly satisified.. If I had to start over I'd look at Losi if I didn't go AE again.. Toss-up between those two. Mugen would be my dream brand, but it's a bit pricey and parts are not as widely available as Losi and AE..(e-bay, forums, etc..)