Jayco or Grand Designs toy haulers experience?

We've got a 2016 Jayco Seismic Wave 310 and the attention to detail when building the 5er kind of sucked, to be blunt. Originally I needed one with at least a 12.5' garage for my RZR 4 seater but didn't want to go over 40' and tandem axels to keep the weight down to pull with our 2011 F250 6.7

And I really wish we would have bought a GD. I love our Jayco but would have loved a GD a little more.