I bought a used 10-20 a few months ago. I think it works pretty well. The image stabilization isn't as good as the Cannon binos, but it's a quarter of the price. Image is clear, and I think the glass is pretty good. My only gripe, is that there isn't a place to attach to a tripod. I just used my Pig Saddle. If you decide to get one, PM me before you buy a new one.