has anyone tried them? looking for any input.

Yeah im running them on the fronts right now, they corner great, and have alot more braking power then my gncc's They are a smoother ride as well.

Maxxis makes a great tire i have two pairs of maxxis tires I-razr's and razr mx's both work great.

What kind of terrain do you plan on using them on? Judging by the lug pattern they look like they'd be good for mx or hardpacked dirt/grass. I've never tried them but thats my two cents.

I run purely xc, with mine, mostly loose terrain with lots of rocks and roots.

If your running on loose terrain with rocks and roots find yourself a desert terrain tire. Something that can handle all the rocks but still hook up in the soft stuff. I really like my Kenda Claws for trail riding. They work good all around because they are reversable from soft-hard.