Well, I haven't tried on everything, but the outerwear fits me, for sure, as do the knits (which can be worn any number of ways - they fit me tighter than on the runway models, mostly), and the tees, though I did not try them on, I'm sure would fit more for sure.) Geller is a funny brand. A lot of the pieces look good a bit oversized (as seen on a lot of the models, but also "regular fitted", which seems to be the way Robert himself wears his own pieces (from his own accounts, he is a 52 or so in his own stuff.)
The vests look good, if you are into that type of layering. Me, I don't wear much drapey stuff, or tailored stuff, so I mostly just look like a bartender in a crappy bar in LA, when I wear a non-padded vest.