Sway has not been a problem on our 2300 (Chevy chassis). In a crosswind, you can add air to the rear air bags for a little stiffer ride and minimize effects of wind. When semis pass, you get pushed a little. I would not really describe that as sway. It is no big deal-you get use to the feel and it really isn't something you even think about. The MH is very easy to drive and very quickly you will become comfortable.
2012 Forest River Sunseeker 2300 Chevy