We have a 2011 Berkshire and there are a few hints I can give you. Probably the first is that you may want to join the Forest River Owners Group (FROG) and take a look at their Berkshire link. Other hints that I can think of is that there was a recall in 2012 or 13 regarding the inverter. You may want to check to see if that was done. Another potential trouble spot is the carrying capacity. I was shocked when I found out that mine was less than 2,000 pounds without water, passengers, and stuff. I felt that wasn't adequate. If you find that you have a low carrying capacity then you may want to contact FR to see what they will do about it. They made some modifications to mine which bulked it up to a CC of 5,000 pounds.
I see you are in Florida so you may want to check out Magna Shades for your unit. The Berk is a great unit but it's insulation and A/C units leave much to be desired. The Magna Shades can help to reduce the heat in the rig.
Other than that, enjoy your new unit. Have fun and safe travels.
2011 Berkshire 390bh