I hear the P2006 has a few limitations.
It can carry fuel or POB but not both, basically instructor and student with a reasonable fuel load or 4 POB without a lot of fuel.
Apparently it has airframe limitations in turbulence that don't apply to other light twins. No negative G I hear. Most GA aircraft are good for -1 to -1.5 G.
They might be cheap to hire, but I sure wouldn't want to own or operate one long term.