We have one as a spare and I happen to use it in our car yesterday and took some pics of DD. She is 31lbs, 34.5"(?) and 12" torso height.
Here are the pics from yesterday (please excuse her blankie hanging out of her mouth, she sucks on it when she's tired):
And from a few weeks ago after we first got it and had to try it out:
She seems comfy in it, decent leg room and probably about 3" or so of shell above her head still. My only complaint is the buckle presses into her stomach. I doesn't seem to bother her though. It's kind of hard to see in the pic, but the buckle kind of comes to a point at the top and presses in.
It's a little difficult to get to the tabs to loosen the harness straps in my Santa Fe, but not terrible.
Okay, I lied I have another complaint, the latch straps are short making it a bit difficult to tighten because you don't have much access to pull. The install isn't too bad though otherwise. We got it since it seemed to be the most grandparent friendly as far as adjustment.
It's still in our vehicle so I can get more pics if you'd like :thumbsup: