I also had a 2010, we used it for several years then it developed engine trouble and the rest of the tractor was poor enough so it was sold for salvage. I believe my brother sold it to All States our host now. That being said I now own both a 1967 4000 gas and a 4610 diesel. I've never been around a 4600 but I assume it must be close to the 4610 and I just love that tractor. Looking at the link you posted that looks like a nice clean tractor and with that quick attach loader I also agree that it is definitely a decent price. I have a heavy duty 6' Alamo rotary mower I use quite a bit on mine and it handles that with ease. But you should use an over running clutch on the PTO as it is easy to take the PTO brake out with fast shutdowns of the PTO. Happy shopping and Good Luck in your purchase, Bob.
