I upgraded from my Sherwood Newcastle P-965 to an Anthem D2. Reportedly, the P-965 (which the 990 is based on) sounds very similar to the 990. The Anthem was a major step up but also way more expensive..

The D2 has the same video processor but is supposed to have better audio than the 50 but I digress....Was it worth the money. In my opinion - absolutely. That being said, I really loved the sound of my Sherwood and unless you need the scaler and HDMI switching I think you would be satisfied with the 990. It is an incredible value for the money. If budget is not a real issue and you can comfortably afford it then I highly recommend the Anthem.