I've had my e-vivaro about a month now and it's great for us. Hasn't got a massive range, 140mls, but for our everyday life it's great. We charge it 2-3 times a week. We contacted our electric company and they put us on a plan that gives us cheap electric between 2am and 6am so that's when we charge it, it's on a timer to charge at those times. In those 4 hours it puts 100mls on the charge and according to our smart meter it costs £2.
The big issue is obviously long trips, we're going to Devon end of march and we reckon that will encompass 3 stops for charging (we normally stop once when we go) at least, maybe 4.
The other issue with motorway driving we have noticed that when we cruise between 50-60mph the battery if fine but if you drive faster, ie 70+ it really drains the battery. So the Devon journey I reckon will take at least 2 hours longer than normal.
Next summer will be a test also with all the day trips we like to do with the kids, majority will require a charge at some point of the day. As of right now there aren't enough charge points but hopefully more and more are to be added