Lock-out, rebound, reliability, price
None, that I can find
I've had this fork installed on my XC bike for over a year and I love it! The lockout dial is easy to turn on the fly. The rebound knob is on the lower of the right leg and is large enough to grip easily with gloves. The air pressure valve is well protected and they even have a suggested pressure sticker on the leg so you don't have to fumble around with the manual.