Congratulations! We have a 2011 Key Largo and love it! Please don't be frustrated if when you get it home or go for your first shake down cruise you find small issues that need to be fixed and adjusted. As with most new things (cars, homes, microwaves, stereos etc) there could be something that needs attention. Work with your dealer, Heartland or attend to it yourself with the help of the great people on this board.
We had a water leak that we worked with for a while before finally figuring out the cause and getting it taken care of...thankfully my husband is VERY patient (me? not so much!)
Enjoy!