I have had a Super Program for years and the ONLY thing that has ever given me a problem is that the film counter is stuck at 36. It's a decent handling camera and I especially like the DOF preview lever. Small but not too small with a nice thumb and finger grip that really make it pleasure to use. Accurate metering too.
I also have the ME Super which handles nicely despite not having any grips nor DOF lever, button, etc. However, my favorite is my MX which I feel is THE perfect camera!
Of course my Spotmatic SPll is quite nice in it's own right.
Overall I think most any Pentax is a good choice!!