Here are my nitpicks of the 2015 Leaf after a week or so. We're at 4.0 miles/kWh, which is about average, I guess. I just started using Eco mode today.
You have to hold the key right next to the power button to start it. The trouble is, where do you put the key afterwards? It can't go back in your pocket because you're sitting down.
It seems like you have to slam the doors fairly hard.
It doesn't have a display for all tire pressures like my Cruze does (even though it retails for $19k more). That is a nice feature.
Other than these nitpicks, my wife is loving it. I think I like the Cruze a bit more.