My P11 had a CVT gear box, but never had any problems with it.
The CVTs’ are very good and responsive. But you have to take care of it, especially when it comes to changing oil. My P11 had a Hyper CVT box and the recommended changing intervals for Hyper CVT oil (NS1) is every 60,000km’s. But I did mine as soon as I bought it since I didn’t know the exact mileage the previous owner had done since his last change. Then I again changed in 30,000km’s. If you take care of the CVT you won’t have any problem with your box. Never experienced any problem with changing CVT with the AMWs’.
I took it to a service station (not Pitstop) once and asked them to do the normal service (exterior & interior). One of the supervisors asked me whether I want to change the oils. I just inquired abt the oils they have. He recommended Sh*ll and some other ATF (I mean ATF not any CVTs’) . Imagine if the owner doesn’t know anything abt the difference between CVT & normal AT, what could have happened.