I had the R-20 and still have the Alinco DJ-X11 . Both are very capable receivers but I have to say the Alinco has very nice audio and better AM reception. Includes charging stand and more than 100.00 cheaper.
I have no experience with the Alinco but did have an R-20. It was returned within a week due to the serious lack of sensitivity in the 300mhz area.