Congratulations on the new bike. The Xciting 250 is a really nice bike for people that want to do only occasional highway travel. If you keep it at or below 65mph, you will be able to get 65mpg. I weigh 260 lbs and there's still enough oomph to bring the bike all the way up to 80mph (possibly higher, but at that point its well past redline), which means that most hills won't slow me down. The bike is also quite heavy, which helps tremendously with highway stability. My previous bike was a Chinese Honda Reflex (244cc) knockoff, and it was very easily blown around, being 100 lbs lighter. The Xciting 250 was an upgrade in every possible way.
Of course the downside is, the bike is heavy. Your acceleration isn't a good as it would be with a lighter chassis. And its more difficult to push around. And the bike was designed for people with long, long arms.