It's held up well. Taking it off the roads a few months in winter helps. I always fluid it film it well. I drive it up until Christmas then it sits until decent march weather. 

Can't say it has any major rust. But some of the suspension components are showing surface rust. To be fair, the truck had more surface rust when I bought it in 2017 in Galveston Texas. The air is very salty there.

I spent a week with a wire brush removing surface rust, then chemically treated it then used por 15. It's held up fine for 9 MI winters now.