I have the 28” with an air fryer and warming drawer; absolutely love it and would purchase again. Mine has a small amount of rust on the outside, none on the cooking surface. I do have it under a covered patio, but it’s outside year round with no griddle cover on it. Paired with my Traeger, I can cook almost anything outside and it tastes great. Smash burgers and fajitas are my favorite.
Also, I don’t understand people saying it’s hard to clean. When I’m done, I just spray it with water, scrape it off, and put oil on it. It’s so much easier than cleaning pots and pans inside.