Great review, as always. I like the design of this set, although it could use some 1x1 cheese slopes on the back bracket where the black 1x1 round plates are.
It depends on the size of the set. If it's a small set, I'd keep for about a week and then disassemble it. If it's bigger, then I'll keep it built until I want the parts from the set.
The vehicle's nice; I agree with SpaceMonkey on how you managed two figs in the seats The vehicle itself is cool, but the real star is the chaingun, it looks so realistic