Here's another real life example, not a friend of a friend.
The company car I drive now is a Ford Fusion Hybrid, I been driving it for 4 months and it has 15,000 plus miles on it now. It drives differently than a normal gas powered vehicle, the regenerative braking feels different, under mild braking you are just generating power, push harder and the brakes start to activate, it works fine, just feels different. The cabin climate control is not that good because it switches from gas to electric power so frequently and the heating method is different, it will get too warm and then too cold, I'm constantly adjusting it.
The power is fine, I drive it no differently than a normal gas powered model, the CVT (transmition) works very well, I never even think about it.
The car is very quiet and smooth, this is one of the best aspects of this model, I don't know how it compares to the gas only version in this regard.
Overall mileage is at 43 right now, I've never reset it from new, it's been as high as 44.1 and climbing, but an economy setting was turned off by mistake and it started dropping, I just turned it back on. Much of my driving is on the freeway, so it may be better with lower speeds. It tells what your mileage was for the last trip when you turn the key off, I frequently see figures of close to 50MPG, but I also see 38 ever now and then.
I would probably buy one for normal driving and commuting, but with no towing options it wouldn't work for me, for the wife it would be great. I didn't see the exact price for it, but I was surprised when I was told the cost wasn't that much different than the gas only version.