Wow I can't even remember when we got rid of it! Before 2. Stan just refused to get in it one day, pointing and pointing to the 'grown up' seats, and that was that! He didn't have a booster seat, just sits on top of a couple of cushions on a grown up seat.
But you know, he's always been a pretty good eater (touch wood, touch wood) apart from a few short phases, so if he's getting down from th etable we're usually confident that actually he's not hungry.