All good stuff, and I reckon key things to have in one's mind:
- Vr, Vx and Vy - and take-off flap setting
- Best glide speed - in case it all goes quiet
- Approach speed - and landing flap setting (and remember to turn on the fuel pump)
No big drama between C172 and PA28. Probably less rudder needed (in the PA28), more tendency to float if too fast, and on most engines less likelihood of carb ice, in my experience. And you don't need a ladder to refuel it.