I had never driven anything of this size. I watched a number of you tube videos as referenced by other forum members to get the gist of it. I particularly liked the video by lazy days RV (new drivers confidence course). It gave me the confidence to test drive and ultimately buy our ACE 27.1. Gas stations are still a challenge but overall I can manage. Enjoy!!
If you are worried about staying in the center of the lane, on my ACE I found that if I look at the defrost vents at the windshield, the right edge of the second vent on the drivers side will be just inside the white line of the road then I am centered in my lane. I also have a toad and keep my rear view camera on, also helps to look at the toad to see its in the center of the lane. Not sure if that helps any or not.