I just traded in my TZ-24. I had it about 1 1/2 years and used it mainly for mowing. It had about 80 hours on it when the body panal below the seat mount fatigued. I will write a review on the tractor soon. We ended up trading for a TC-23 which should have most of the bugs worked out. The reason we stayed with NH was a very good dealer and actually NH worked with me to get a very good deal, better than advertised, on financing. The TC-23 is our 5th NH tractor. My experiance with NH is that the company has been responsive and works to make things right, as does our dealer, Brim Tractor. I also own a 1530.
I think you will see the same problems on the TZ models as the DXE models. I think the tractors aren't bad. They are laid out well. If the seat issues and other small problems are addressed, then they should be pretty good little tractors. I think one problem that is going on is people asking these tractors to do more than they are designed to do. After all, these tractors are basically heavy duty garden tractors, not compact tractors. Some of the problems may be with the manfacturer in equipping these tractors with backhoes, loaders, and other PTO implements which are better suited on a compact tractor.