I heard they are weak POS from several people who own them.
My Dad has a Polaris and it rans better then any other brand out there while at the huntin club, did the best in the mud and on those freezing cold morning it cranked right up no problems, every other brand out there had trouble. He just oils the chain on it every now and then, its gettin on in age now but still no problems other then the brakes are going out and my starter is out. With one pull it cranks with the pull crank so I never changed the starter yet.
(Its a sportsman 300, prolly around 5-7 years old now.)
I hear alot of people complain bout them but maybe we just got lucky with ours, no complaints other then it being a little loud and its chain drive.
I have a Suzuki, yes I would buy another one.
I personally have never been impressed with the overrated Honda, Polaris and Suzukis outpull emm in the mud, I also never liked the way Hondas engines ran I've ridden alot of them over the years but I've never really been impressed.
My first choice if I would buy would be get a Suzuki, then Polaris.
I'd ridden every brand 4 wheeler extensively I just prefer the above cause they have been good to me and they have performed better then others. I ride emm pretty hard, but we always keep good care of them when we are done ridding and run the best fuel in it.
Also look into Artic Cat, never ridden alot of them but I heard good things about emm.