Over on the Ham Radio Science website, they have been using an RSPduo for a couple of months now and published a review.  In it they conclude: “Providing an SDR with dual independent SDR receivers with great performance for $269 is an amazing feat. When diversity reception becomes available, the RSPduo will probably be the “go to” SDR for the serious radio hobbyist. If you are considering trading to a new SDRPlay RSP or just looking to get into SDR radio, get the RSPduo. ”  Click here to read their review.