No experience with Octane, but we're on our 3rd Jayco, the first 2 purchased new and had for 10 years each. Initial fit and finish seems to be the biggest issue with Jayco. Things like misaligned doors, trim not fully glued on, just sloppy stuff like that. Otherwise they are solid well built units. I would recommend your brother joining the
Jayco Owners Forum and ask the same question there.
Chuck D.
โAdventure is just bad planning.โ - Roald Amundsen
2013 Jayco X20E Hybrid
2016 Chevy Silverado Crew Cab Z71 LTZ2
2008 GMC Sierra SLE1 Crew Cab Z71 (traded)