Read the reviews on pbreview. The Vlocity has a 9.1/10 rating the Halo B has a 9.2/10. So it can't be that bad.
However, I have a Halo B w/ Rip Drive and I love it. I'm probably going to upgrade the board soon but it has never failed me. IMO the Vlocity is fugly but I'm not sure about the performance and that is really what is more important.