Congrats my friend.
We both had good experience with amazing 6 series. As you said everything with this car is perfect however it's a big and heavy car.
I hope you enjoy the nimbleness of your M2 and to be honest with you I don't care if I wanted to get M2 without any luxurious such as B&O or HUD because this car is built for something else... FUN
I too returned my M6 since 3 years lease was up and now I am behind the wheel of M4
. Is your M2 Manual ?