The engine will seem to be turning a little slower on takeoff, that's normal. Your first flight with someone in the back should be one person only, and then pay particular attention to the C of G. You can aft load a 172, which you won't be so used to with the 152. It'll be fine, but just check it.
As said, if you're being asked for more than an hour dual for a checkout, something is wrong...
Don't worry, it'll be just fine!
they are both good aero planes as the Brits would say.
Well.....all but one Brit!
