I've had my 3033R Since Nov 16. It too is a cab model. As of this writing I have not had any problems. When I first researched the tractors, I was conflicted as to get what I got or the 3039R. I opted for what I got as I wasn't sure if I wanted a turbo, and the bulk of my work with the tractor was to mow six of my ten acres. As my property has a pretty good sized hill I worried about not having enough horsepower to tackle the hill while running the AC. This didn't turn out to be a problem. I go a little slower up the hill, but I don't think I'd want to go any faster, as I wouldn't want to bounce around any more. To help with saving horsepower, I bought a Meg Mow mowing blade system. I had used it on my previous tractor and noticed it didn't seem to rob the power of the engine as much as using regular blades. I now mow in comfort with the AC, and plow snow with the heat. I also don't have to suck in pollen and dust like I did when I had my open station tractor. Another problem I have is that I get my work done faster, so I don't get to be on the tractor as long! Also, since the majority of the work I do is mowing during the summer, I am running the tractor at a high RPM and as such it keeps the DPF filter cleaned out. I have as of yet had a Regen kick in. If I had to do things over again, I'd buy the same tractor.