I took the plung and got the RR2150 during the sale. Got it setup last nite and listen for a hour or so....so far I'm very happy with it. The volume controls on the remote are a little touchy but this little receiver packs a bunch. Good solid bass, the highs are clear but not too bright. It's a good solid performer that I'll have for a long time.
The only thing I miss is the loudness control on the Sansui. I used it all the time at low levels. I've had many receivers over the years with loudness controls that never sounded good to me, so I never used them but the Sansui was the exception. The RR2150 has a "speaker equalization" selector that adds a half-octave of bass boost at a choice of frequencies to improve performance which helps.
It's nice to have a modern receiver to add in the rotation.