I tried a trial of Studio One and immediately uninstalled when I realized how bad the plugin management was. SONAR, REAPER, and ACID Pro all allow you to set a Friendly plugin name, and SONAR even chooses an acceptable friendly name out of the box, when it loads the plugin. Studio One just seems to choose the name of the DLL file, which is unacceptable.
This happens for all VST2 Plugins (Effect and Instrument).
I tried for an hour to look for a way to fix it, and just decided to uninstall the application, instead.
So much for being eager to switch after the trial.