We went from a 34' Big Sky to a 40' toyhauler. It does take a little getting used to, but not nearly as much as I thought it would. Mostly it's just watching turns a bit closer, and making sure the stopping space is long enough. To be honest I'm more concerned with the height rather than the length.
I'd rather have something a bit less tall, and maybe a couple feet shorter, but this toyhauler was the only one that met our criteria. We stay in commercial campgrounds as a rule, so finding a spot isn't that big of deal.