Gosh that 5 minutes sounds attractive. And is that 45 minutes a real 45 min, or 45 min on a good day with the wind behind you? Real life gets in the way sometimes, and you can be amazed how much time a "1 hour" lesson can take.
It's good advice to visit the schools and see how you like them, and to check the fleet size so you have good availability.
All factors to be taken into account as well as the helicopter type.