OK, been using both 2020s in various configurations and I like every scenario better with the 2020s in the chain. As others have said, makes things "more gooder".
Does good things to the mids and I like the description someone posted saying it made your tone more "studio like". Does something nice to the highs too.
I notice the effect most with two 2020s back-to-back and after something that can drive them good. After a compressor with output pushed is really good.
I think I'm going to try and mount these under my pedal board after compressor and before preamp.
I definitely like the 2020s more than the 2020. Good move on the part of Mike at Lightningboy to release this updated version. I will also say some if this is more of a feel thing... in other words it feels better to play with these two 2020s in the chain. Just something about it.