I currently own a rhino iguana. He's probably just under 2 years old, and about 28-30" (not exactly sure). MikeD here on MFK (I think that's his name) also has one, a little older and larger than mine.
I really enjoy my guy. He's very inquisitive, pretty active, and while he still doesn't really like being held, he does like to be petted, and seems to enjoy me helping pull of stuck sheds.
He's a very good eater, loves any leafy greens, green beans, corn, carrots, peas. He also likes blueberries a LOT. Besides that he gets grapes, and occasionally something like kiwi as a treat.
He also really likes banana nut muffins, although that was accidental on our part. He's only gotten them once, but he literally climbed up my body trying to get another bite after picking up some crumbs off the floor. The fact that he's a vegetarian really helps with eating, as we don't have to worry about keeping roaches or mice, and my wife (who is a vegetarian herself) definitely likes that he doesn't eat any meat.
We've been living with my parents for the last 8 and a half months while we're between houses (moving in a week or two, hopefully), so I haven't been able to give him as much attention and exercise as I'd like to. Once we move, he's going to have the run of the finished part of the basement, with just my aquariums and computer down there for company. Hopefully that will get him to calm down and socialize a bit more.
All in all, I'm really glad i've got this little guy. He's fun to watch, easy to care for and feed, and while he doesn't give us affection in return (at least not yet), he does provide some entertainment and personal enjoyment.
Are you considering getting one?