Im pretty sure all MBC do the same exact thing. I have a TurboXS MBC, and I haven't had any problems with it. Of course from stock there will better spool and more power as thats what MBC's do, but i don't think one brand is better than another.
Of course my TurboXS one looks pretty nice, and they make a dual stage that you can flip a switch to change from two set psi levels. Kyle is using the TurboXS dual stage, and has his set at 12psi and at a flip of a switch changes to 21 psi. Personally I think its off the hook.