I had my LIM upgraded to the Plus. The new chassis is nice and the addition of a remote a bonus but unfortunately the NOS is a big disappointment. For whatever reason, the NOS mode is indistinguishable from using the filters. Very strange considering any NOS DACs that I have auditioned (which amounts to 2 in the past year) sound very different.
Also, while you can change inputs and polarity with the remote, you can't toggle the NOS mode (you have to that via the front panel) which was a strange decision imo.