At 6ft 5 I did my first hour in one of the C150's at Sherburn, and now my logbook shows a total of 1 hour in a C150. I found it just too cramped and switched to the PA28. As has already been stated though, they are on the way out at Sherburn so it shouldn't be an issue. Not sure what the At3 is like for room as I haven't had the chance to fly it yet, but the PA28 suits me just fine.