I've built both, and while the HB kit has some issues, overall it's a much easier build. The surface detail has some extra rivets that really shouldn't be there. After building a number of Hasegawa kits, though, the HB kit is a refreshing change for fit. One thing about the HB kit is to pick up a Steel Beach NACA vent replacement. The positioning of the vents on the HB kit look odd. The intakes are also not quite right, but I just cover mine up with a set of SB intake covers.