X6 owners how bad do you find the blind spots on the vehicle to be - both when driving and when trying to park

Also how much of a pain is loading & unloading the rear hatch

Thanks

__________________
2011 X6 xDrive50i - Titanium Silver/Black Nevada/Bamboo.
Loaded except: Smartphone Int, Heated Rear Seats, Rear Ent, Lane Dep, SC Doors, 20" Wheels
2008 Aston Martin Vantage - Black/Black
Loaded