The floppy foot seems to be widespread, though the wheels on mine are fine. I have to agree that the toy is not quite as tight as I would like, but it sure does evoke the feel of the original toy both visually and tactile.
have you transformed Fanstoys Sovereign much? I'm quite tempted but the feedback I hear on transformation on some Fanstoys products seems to be difficult with a chance of injury. Sovereign looks great, but I'm not going to sign of on him unless the transformation is reasonably fun.