If you've never flown a Hershey bar wing Cherokee, you should before you buy into one. The taper wing Pipers fly like Cessnas, the wings are very similar, but the old straight wing Cherokee, while a fine airplane, flies like an anvil in comparison.
I began my flight training in a PA28-140 Cruiser, complete with air conditioning. Just what we needed on a hot August afternoon in the practice area down low doing ground reference maneuvers. Kept me from turning green a couple of times.
Anyhow, the day comes for me to solo, and the 140 is broke. I went around the pattern three times with the instructor in the -151 Warrior, never flew it before, and the instructor signed me off. I didn't have any real problems, but it was a different airplane, performed alot better, with or without the instructor. I flew the 140 one time after that, the school sold it and I flew another 80 or so hours in the Warrior before I bought my 150.
Charles