If you really can charge at work, then range is not an issue. I have a 52-mile round trip commute with no access to charging at work and have had no issues (although I had no reserve when the 2011 was down to 8 capacity bars before Nissan replaced the battery). AFAIK, battery replacement cost has not dropped--still $5k or so. There have been a few reports of expensive parts failing, but the cars have generally been quite reliable. You really need L2 (240-volt) charging at home to get the most use from the car. I recommend an SV or SL with 5/2013 or later build date to get the heat pump system. There is some evidence that battery degradation is higher on 2013s with build dates of 3/2013 and earlier.
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015