I have no experience with their Cheyenne model, but I bought one of their very early camper trailers off them in Jan 2012. Took it to places that I never expected that it would come back in one piece, but we never had any issues with it, EVER.
It went up the Oodnadatta track, Old Ghan track, Palm Valley, Dalhousie, Mt. Dare, Birdsville track, Cameron Corner, Gawler Ranges, Flinders Ranges, Roper Bar to Burketown via Hell's Gate, Dowling track, Silver City Hwy, Warri Gate, Innamincka................... Sold it in 2017, it even still had the original tyres on it.
The after sales service from Eagle was BRILLIANT.
I have no association with Eagle, other than being a very happy customer! (I currently have an Aussie made hard floor camper, which I am equally happy with)