Depends how you define fine.
It’s a narrow, steeply raked window and the two remaining headrests are large.
In good conditions I’d describe the rear viz as adequate, in that you can see what’s behind you, but I’ve had a lot better.
In wet/cold conditions the bottom few inches of the screen never clearing (the wires there are for the DAB aerial makes rear vision poor.
It would have been far more sensible for the never-clear part of the screen to be at the top.
I don’t really get bothered by it as such, as years of driving vans has led me to use just the side mirrors more than your normal car driver would.