This is my opinion only, take it for what you want.
Looked at the 2015 model of this unit, thought it was nice. Main complaint I seen online was the front caps are known to fade, i see it reported on 2014 and newer models, this could be the 2015 is not old enough yet.
Your current RV is made by Thor, this as you know is made by Forest River. My 2012 was a Keystone by Thor, my current a Sandpiper by Forrest River, both RV manufactures are the exact same, the good and the bad is 100% dealer. Those who do the PDI they are paid to do, often have less quality issues that you will discover, they also are the dealers who will go to bat and look after warranty repair. Garbage into Thor and Forrest River equals garbage out, good reports and quality service writer request equals approved service and happy customers.
Be more concerned about the dealer then the product line is my experience.
I went with the Sandpiper, reason, outdoor kitchen fold up door was roughly 6ft off the ground on the crusader, I am 6ft 2. This was a deal breaker for me. Although it is important to point out, the outdoor kitchen in the crusader has the propane stove, Sandpiper does not, a feature I miss greatly.
2015 Sandpiper 30IOK
2014 Ram 6.7 CC DRW
2006 Charger RT