i have both a cheetah'd halo and a reloader b. i use the cheetah more cause its lighter (i put a boost rechargeable in it cause it eats batteries) and its fast, plus i like the lights
but the reloader b is my never failed me yet backup. i must say that i've only broken 1 ball in my cheetah and that was 3 month old domination that was really really brittle. before i got the cheetah board, i used to blend all the time with the zcode board.
*edit* from what i've (and a bunch of friends) found is that the reloader b feeds more consistently at higher speeds than a regular halo board. however, i'm pretty sure this is due to different sensor logic.