Intrepid MW DXer, Bjarne Mjelde is well known for his arctic medium wave (AM) DXing which presents some of the most challenging conditions imaginable.   He has taken time to put the RSPdx, through its paces in this detailed review in his latest blog post

In the report, he concludes that the RSPdx makes a good, inexpensive alternative to much more expensive receivers for MW and LW DX-ers. He also notes that unlike many alternatives the RSPdx can sample the entire broadcast band at once.