He just looks a little too small in the net and without the athleticism to really make up for it. Fleury is described as smallish and he's still got two inches on Theissen. At least he appears to be decent in the A.
I am fine with the signing, I have no problem with him being #3 in the goalie depth. Probably will be a career AHL'er but I am fine with him having a few NHL games riding the pine or starting due to injury.