I bought the tractor to maintain ~ 3 acres. It had 600 hours on it and is in fine shape for an 11 year old piece of equipment.
Although a gear tractor, I don't find this to be am impedance for the work I do. In fact, I prefer gears (but I don't do much loader work other the snow plowing).
The 670 has an 18 HP (16.5 HP @ the PTO) Yanmar 3 cylinder diesel engine which is quite torquey, considering the displacement. It's a very tough smaller tractor. I use a 6' back blade for snow plowing. The 3PH doesn't complain at all about the weight of either the back blade of Befco finishing mower. The gear spacing is quite adequate to meet my needs (of course, my needs are 1st and 2nd low range...I rarely use higher gears and never use high range).
This tractor has a single stage clutch. This does not allow the PTO driven implements to run when the clutch is depressed. In retrospect, I'd rather have a dual stage (to allow the PTO to drive when I'm changing gears). The tractor is also a bit light (I've no ballast other then what ever is hitched to the three point and the FEL. On more then one relatively light snow, the front wheels have come off the ground while plowing with the FEL.
The FEL works well. I do see the advantage of having a toothed bar on the bucket. Mine doesn't have one (yet) and the tractor tends to ride up a pile of snow, rather then digging in. The FEL bucket (in "float") woirks really nice for pulling snow away from the house, or back off the road when I'm doing the snow thing.
I'd buy this tractor again. I expect to use it for at least 5 years....at least! If a choice between one with a single stage or dual stage clutch, I'd definitely grab the dual stage, all other things being equal.

Date Purchased: 9/2001
Purchased: Used
Price Paid: US$8500
Pros: Sips fuel, manuverable, tough!
Cons: Rather light (for 1800+ lbs!)
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