We have a Subaru Forester and it's a great vehicle. My wife drives that and it's excellent in the snow. It's an 08 with about 50K on the clock and I haven't had an issue with it. The gas mileage isn't the greatest at 24 MPG but the overall performance of the car is worth sacrificing a few MPG.
The Legacy and the Forester share the same asymmetrical four wheel drive system. It's also one of the safest vehicles in it's class. Personally, I would buy it without concern.
Hope this helped a tad. Good luck!