And how was your rental from abc-corfu?
https://abc-corfu.com/ is the obvious choice this year again. They give returning customers a 10% discount every time you come back.
I wouldn't say that it's difficult to drive in Corfu. Certainly, some roads are narrow and you need to be cautious. Some hours of the day there's a lot of traffic and it can be difficult for a new driver but for an experienced one, it's ok.