I’ve had dual monitors for some time now both here in the studio and at my real job.
It takes a while to get used to a few things, but having one screen dedicated to the DAW and one where you can park the plug-ins is invaluable to me for a few reasons:
1. It’s much easier to organize and see what’s going on.
2. I have the monitor dedicated to plugins off to my right side. I think I am tending to mix less with my eyes and more with my ears.
3. The plug-ins no longer cover up my edit or my mixer views.