So far so good. Gets grate fuel usage, sips the fuel at less than 1/2 gal per hr. Have had the 2605 since around July 2012. Its built like an older tractor and doesn't have some of the bells, which I don't really need. Its a 4x4 with FEL and Std transmission. Starts up good in cold weather, but does take a little while to get to normal rpm.
Only issues I have run into (that I remember) are:
Hood is hard to raise (there is a upgrade available but haven't checked into it, yet).
When I pull the stop knob, have to remember to turn off the key. The 135 didn't require this as it did not have some of the electronic accessory's.
Brush will sometimes pull the connector off the circuit that shows the 4x4 being engaged. Doesn't stop it from working normal, its just the dash ind doesn't show it engaged.
I have a MF bullet disk plow that the left arm socket of the tractor won't quite fit. Have to use a nail in the pin hole as the busing of the lift arm is to wide to allow me to use a normal size pin.
It only gets about 45hrs/year. I use it for brush hogging, plowing & disking the garden, moving brush around and a little dirt moving & leveling.
I love it.
Would buy it again.