I have a 5740C w/ FEL. It has about 100 hours on it now. I use it for two purposes. I use it in my vineyard for spraying, mowing, moving supplies, etc. I also use it in my periodically in my construction company for more rigorous uses such as hauling dirt, box blading, leveling, ripping stumps, moving rocks, etc.
This is my first tractor (but I have rented them for years) and I have been happy with it. I am definately glad I got the FEL. I don't know how I ever lived without one now. It lifts right at about 2000# like the manual says. I am extremely glad that I also bought the 4WD model. I have to use it all the time in the construction use when I am driving into ditches and up steep slopes.
I am demanding on my equipment and the tractor has some battle scars. Mainly it is the result of working in amongst the trees. I have lost one mirror, one light and a part of the roof. Of course this was my fault.
Mechanically speaking it was performed fine. There was a problem in the beginning with a small aluminum hose fitting on the A/C system breaking. I noticed the last one the dealer replaced was shaped slightly different, so I assume they switched to an improved part. So far it has held up and I assume it is now fixed. I did have a few bolts start to back out on the front axle after about 20 hours. Those were retorqued and has remained in place ever since. A couple of the couplings on the FEL hydraulic lines leaked initially, but have been tightened down and are fine now.
Those have been the only problems to date, so that is pretty good. I am extremely happy with it. It appears to be an excellent tractor.