A friend has recently bought one of these, and I was horrified to learn that he can only get about 100 miles out of an overnight charge at home. While these may be the way forward - although I doubt it, and expect hydrogen will eventually be the thing - the current state of charging and charge points does not appeal.
That charge rate is from a 3pin plug (about 22hrs to charge from empty to full). W standard 7kwh wall box, which can be installed for about £199 after discounts, or free at the moment by western power distribution would give you about 220 miles if you plug it in overnight.
Spending £50k on the car and not buying the wall box seems madness to me.