I think the Renault version due out next year should be cheaper - making these seem extra-viable.
I'd have on for a daily commute in a heartbeat just for the fuel saving, road tax saving and having a car that is totally simple moving forwards.
My only worry would be the life of the battery - I guess time will tell on that.
In case anybody is worried though, I pick this back up again soon and is the reason I could put up with a leaf...