On another thread I mentioned a trip, as a passenger, I had taken in a CVT Jazz. In short they seem well suited to driving in an urban setting but I felt it struggled elsewhere and was a bit whiny. I am pretty sure I wouldn't have one although I guess you need to drive it rather than just being a passenger.
I notice Toyota are having a big advertising campaign for the latest Yaris Hybrid (also CVT) and it seems very heavily slanted towards urban driving.
More than ever, and I guess it's a good thing, we have cars aimed at specific situations and markets. The choice out there is better than ever.