Skbstone, congrats on the new 3400. Sounds like a great setup on a seasonal lake lot.
As for where to go, that's up to you. I would go to nearby CGs with short trips from home. You learn a lot from setting up and taking down. The driving doesn't seem to be a problem for most people. Some people say that it handles so well that "they didn't know the trailer was there". Well I know it is there, but it does handle very well. Just remember it is behind you when you make a turn.
Welcome to MOC and enjoy your 3400.