Strengths nice all around tractor for my accrage use. Good turning, good power and very nice cab. Like the cruse control used for many applications like rototilling

Weaknesses very ilght in the back, poor traction, and and i almost tiped it over onto its side several times. I was ready to get rid of it, then i took it to a tire shop to put fluid in the back tires and turned it into a real tractor. I could not believe how much of a difference it made but it took 2mph off of the top speed for transport down the road. Rides better at all speeds. It was worth it. Very poor starting in winter, will not start unless pluged in after -10f and my kubota never let me down.

Overall Like the cruse control, i use it rototilling and transport

Strengths Pretty Good Power. Many nice features that other tractors this size don't have. Speedo, LoadMatch, MotionMatch. Controls are in good places and work good.

Weaknesses Junk Galaxy tires are of little to no use in anything but mowing grass, which I don't do. Waiting for my Michelins to come it. Tractor to light in the rear end. Needs more weight from the factory back there. Needs to be a little wider in stance. More articulation of front axle over unlevel ground. Need exhaust coming out the top, so it doesn't blow back in your face. Parts are to high priced, but that is just John Deere.

Overall Really like the tractor. I have to run the 4wd a lot to get anything really done, because it spins so badly in 2wd. But other than that, the quality seems good and it is very nicely appointed. Adequate power for most things. Slick little rig.

Strengths Powerful and easy to maneuver. Tight circles. Clean running engine; hardly any fumes. Starts right up.

Weaknesses I bought the 500 air suspension seat thinking it would be as comfortable as the one on my JD 6420 (an option which costs the same on both tractors) and the one for the 3520 is all but worthless. Its basically an air-adjustable spring with no dampening or float. Also, the deck doesnt travel very much so I sheared off a mounting bolt when I had the deck in the up position and drove over a threshold. I have a feeling I'll be replacing these on a regular basis.

Overall This Yanmar JD is much better than the Yanmar JD 4015 I traded in. The 4015 is a piece of junk. Biggest mistake I ever made but got a decent trade value to get the 3520. If I had it to do over I might have looked at some other brands....New Holland, Massey, Case, etc, but the 3520 is a keeper...for now.

Strengths Plenty of Power, both tractor and implement ehydro and loadmatch comfortable operators station controls are well placed plenty of attachments available

Weaknesses loaded R4's are a little suspect in snow ride is pretty bumpy on rough terrain

Overall Overall a very nice unit. The R4's arent the greatest for traction in snow and mud. I have mine loaded plus wheel weights. I thought a 4000 pound tractor would have a little smoother ride then it does. Feels more like my 425 garden tractor then an ag tractor. I would purchase this unit again in the 3x20 series. Would also consider a 4x20 if I had it to do over again. I really thought the 3520 was overkill for what I needed but these things "shrink" after you own them awhile. I gave it a 9 instead of 10 only because of the short time I've owned it.