I've just started leasing a Tomahawk for hour building, having done 78 hours in a C152 during and beyond training. Yesterday, I managed 6.2 hours, and was nowhere near as tired as in a 152. The 152 is much smaller and much less comfortable. I always thought that a sore behind was part-and-parcel of flying light aircraft, but yesterday's 6.2 hours was the most relaxing I've ever done. I've also flown Arrows and find the Tomahawk more comfortable.