Not many issues with the F01/02. I owned an `11 750ix MSport for about 18 months and absolutely loved everything about the car. If you're thinking about an `09, keep in mind that that was the first year for this series. If it were me, I would make sure to purchase an extended service warranty.
Currently: 2015 Porsche 911 GTS and 2016 Cayenne S eHybrid
Past BMWs: `05 645CiC; `07 650i; `08 M6 convertible; '08 135i; `11 750ix MSport; `15 M235i convertible
"You think that's air you're breathing now?"