Welcome, I just traded in a2011, 31 foot sunseeker, for Georgetown XL. The Sunseeker handled quite well, as always with any class C, you have to be aware or Semi's and strong winds, these are items that can be minimized by proper alignment. We have friends with a 26 foot Winnebago brand who have the same issues, The framework and stand of the vehicle take getting used to.
As far as maintenance issues no more than what my Avalanche has, oil change, grease, and alignment.
Take it for a ride , then enjoy it and welcome to the fun.
We enjoyed our Sunseeker and if I were looking again for a C it would be my choice.
2012 Georgetown XL 360
2011 Chevy Equinox - 2006 Chevy Avalanche