This plug works fine on one track. Perfect. If you use it on two tracks... Reaper dies a painful death.....it is a quick death though. But if it used for self mastering....yeah, it works fine. But it is also designed to be used during the mix. So my complaint is that you can't use it fully, in the way it was intended to be used. ie: Over used, execively used, used waaaaaay to freakin' much.