I have been driving one at work for a little while now, mostly around London but I did take it for a run to Cumbria and back a couple of months ago.
I like it.
The 20 mile electric range is ok for town but won’t really be used on motorway cruising.
The performance of the vehicle is pretty good, with excellent acceleration in “sport” mode, although I tend to be a gentle driver on the road and I was seeing 50 mpg on the Cumbria run.
The only things I found irritating were related to the electronic gizmos, which are unnecessarily complex and fiddly to operate, although the satnav is very good at routing around traffic.
Do note that, as a plug-in hybrid, the engine does not charge the battery although regenerative braking does so you do need a mains supply to charge the pack.
Oh, and the darned thing reverts to “normal” rather than “Eco” mode every time you start it; I didn’t work out if this could be altered.
Sent from my calculator using a lawnmower.