Because we live in a teensy apartment, we were in serious need of a highchair with a slim profile when stored. I really love the highchairs that attach to your regular dining room chairs, but since we don't have a real dining room set (we eat at our coffee table like so many sad New Yorkers!), that was a no-go.
Instead, we got the Graco Contempo Highchair in Deco for around $100 at Babies R Us. With the tray removed, it folds down to an amazingly slim self-standing 4 inches or so. That just the perfect width to slide into a closet or--in cases of closet shortage like ours--simply stand against a wall without being obtrusive.
I'm also a fan of the highchair's super cushy, wipeably clean faux leather seat cover and the fact that the chair has a 6-position height adjustment and 3-position seat incline. It also comes with a removeable tray insert to make for easy cleaning (although, I tend to get that insert dirty in the morning, remove it and not clean it, then get the actual tray dirty, and end up having to clean them both anyway. Double work!)
The cons? I really wish that I could open and close it with just one hand! I really dislike having to put Andrew down to open the highchair up and it makes me want to leave the highchair open all day (which adds to the obstacle course in the apartment.)
Also, the gap between the seat and the chair leg is just the perfect width for Andrew's arm to get stuck in. I've remedied this by stuffing blankets in the gaps, but these get dirty, giving me just another chore to do. Bah!
So... I do definitely like this chair and would recommend it to a friend, but if you do have a dining room set, I'd go for a space saver high chair such as Fischer Price's, which many of my friends have and love. The space saver chair is even small enough to take along with you as you travel. Lucky are those who have a dining chair to attach it to!