Thery were a solid, no frills tractor.  It's the oliver 6 speed non sycronized transmission, but it's not hard to shift if you're used to it.  The three speed powershift holds up well other than sometimes having to replace the electric toggle switch used to shift it.  The hydraulic capacity is a little slow by today's standards.  Power steering is very good and fast.  It has a dry clutch, but it does not cost a fortune to replace the plates.  The brakes are not good.  The Cummins engine is great.  Three point hitch is strong for a tractor of that size.  Road speed is sub 20 mph.  The pfa is very good and solid.  It starts well in cold temperatures, but could sometimes use a bigger battery to turn it over.  The foot throttle is a nice touch.  Paint is of poor quality.  As noted above, the fuel tank is not very big.  On the other hand, dumping in a five gallon can of fuel will go a long ways with this tractor.  The input transmission shaft is driven with the old sprockets butted together with a double chain wrapped around them.  It's something to keep an eye on if you are doing a lot of hard pulling with it (easy to work on if open station, but not sure about the cab tractor).

Overall, it's not as refined as most others, but it would cost a lot to replace it with something better.  I bought one slightly used with a loader.  It's gotten a lot of the not so nice jobs for the last twenty years and has about 7500 hours on it.  I am not in any hurry to replace it.