I cannot answer the bug question in Sept, sorry....but we were there in early April (only time we've visited so far). But I can tell you that we were in building 15, just across from the marina, close to main lodge. We had a 2 bedroom with a marsh view. Just below us was the boardwalk that leads, one way to the main lodge, the other way to the paths through the resort/pool area, etc. It was a beautiful location. The balcony's are not screened in, but are very peaceful and comfortable. I did notice that the balcony below, next to us, had their own citrinella candle burning, but we really didn't notice any bugs. Good luck and have alot of fun!