[MetalMan]

I don't have direct experience, but have made some observations. The HV ESC is heavier and has a larger footprint. It is sensored, so your motor choice is quite limited (particularly to Novak motors). The HV won't have the computer programmability, which makes the MMM MUCH more adjustable. It will be more expensive than the MMM. The HV will be rated at 4s but is supposed to be able to handle 5s (MMM can do 6s).