New member saying hello, picking up a 30DSRE this month.
I have this trailer and an F350 extended cab with 8 foot bed. It is LONG but I got used to it fairly quickly. As long as I have enough space the maneuverability has actually been pretty easy. The only problem is when the access road for the site spots is narrow and has things like signs, trees, or bushes in the way and my front end needs that extra space to swing around as I back in. In those situations it can be tricky. Otherwise, I have a lot less trouble with it than I had expected.
2013 Ford F350 Lariat Crew Cab 4x4 6.7 Diesel 3.55 Long Bed
2013 Jayco White Hawk 30DSRE