In my experience, it actually works pretty well...however, the Value Ram is a mixed bag. As in, they just use whatever ram chips they currently have stock of...so, it is possible to get a "just ok" stick, or even a very high-quality stick. It's for this reason(mixing of ram chip models/brands) that they are not advertised as being dual-channel capable. However, most people have had a good experience running them in dual-channel. So, it's sort of a gamble.
I for one am very happy with my stick of KVR that I own. It's definitely one of the best choices for the price.