Hmm, my opinion is half and half.
Piece wise its great. Three weapons, a shield and a cool fig, plus two wheels, what more could you ask for in a small set.
However the design, which baffels me, is more than bordering on insane. I mean, what is it supposed to do? Is it a anti-calvary weapon? A footman's doom? A mini battering ram? Quite frankly I can't see what it is. Plus, I very much doubt that one man could push it and make any great impact on anything. Not a great design.
I build, therefore I am.
Brave words coming from a guy called grapenuts.