That sounds like a good deal to me. You pay 6936 (after options added) total for a brand new car for 2 years. You then get out of the vehicle without having to worry about trade in value or having to try to sell it yourself.
At the mileage that you'll have on it, you shouldn't have to worry about any major maintenance and might possibly even be able to slip away with the original tires on the vehicle and saving yourself even more money. The car is under manufacturer warranty during your entire ownership period, so you really don't have to worry about reliability since everything will be coverd.
Ok now the down points... You realy have to make sure your mileage stays within the limits given or you will have to pay at the end of the lease a per mile fee and these can be costly if you exceed the agreed on miles by a lot. In California where I leased my last car, they added a tax fee to each payment for the state to get its money(this would be approximately 10 to 15 per month on top of your monthly payment).
Any scratches or dents on the car or interior are going to be looked at as excessive wear and tear. These can cost you in the end, but in reality scratches and dents are going to cost you anyhow if you had bought the car because they are going to give you less if you tried to trade in a dented car.
If you get a dealer who is being ridiculous and petty with those things, you can always just take it to another dealer who might care less about trying to swindle an extra couple hundred bucks from you. Its the same idea as getting the best price on a trade in by going to another dealer.
Leasing can be a great deal if you are aware of the rules and make sure you set things up for your advantage. I honestly don't think you could get a better car for any cheaper and from the reviews i've read, the Fusion is a pretty good car. Good luck to you.