My friend has the Grizz 700 and uses it very hard. It held up perfectally so far with not a single issue. It's a nice machine. I'd look into getting that one if I wanted a more powerful machine then my Rancher

 

I was in the same situation as you two weeks ago with not being able to decide. I went with the brute force 650 instead of the grizzly. About 600 dollars cheaper and more power. But, and I mean a big BUT, the brute force is tippy compared to the grizzly.