"Local" (it really isn't but it'll do!) bike shop has a Marin MuirWoods 29er on sale. Compared to the msrp it's a great price. Has disc brakes, lots of gears, and unbent wheels- pretty basic but three things the current ride doesn't have. Don't really know anything about Marin other than their Cali heritage. For the price, and as a no-bs commuter bike- is this a good choice? What does the brain trust that is TwoSpoke recommend? Please advise!