We switched to the stokke high chair for my 3 yr daughter. She LOVES it! I just wish that we bought that one from the beginning. We did manage to get it a little cheaper since we bought a floor model. She can climb in and out of it on her own and you can adjust it to the height of your table and her at the same time.
WARNING: When my daughter was learning to use it, she did get a few black and blues from bumping up against the chair. It was mainly on her back because she was just trying to slide off it, but after we showed her how to slowly turn around and climb off the chair she didn't have any problems since.