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.