Never spun a powered aircraft, only a glider - good fun - ohhh soo slow and lazy though cos of those ridiculously long wings. Closest I've come to a spin in a 152 was an impressive wing drop during a stalling lesson - with flap out and a bit of power on. Happened far quicker than I was expecting!!
Aeros are something I'm aiming for as well - once the $$$ come through!!