Congrats on the new to you car! I've said this in other threads but I leased a 2015 500e and loved it. It is, I think, the best small EV out there right now and it's very cheap to get into a used one. I wasn't able to make a deal to buy back mine when I turned it in but I'll be getting into another one soon enough.
One thing you should be aware of is enjoy the ~100 mile range while you can. Once the temperature drops to below 50F the range starts to drop considerably. The worst for me was when it was about 45F and raining hard here in Portland. The combination of the heater, water on the road (drag), freeway driving, and the cold temperature got me a range of ~65 miles that day. Granted this was a unique set of circumstances but it can happen. Pre-conditioning will help a little when it gets really cold out and I normally saw ~70-75 miles on the regular cold days.
Here's a pic of the day we turned it back into the dealership. Sad day.
Good bye Fiat by Wayne Larson, on Flickr