This plugin sounds actually pretty good. I have a few problems with most of his plugins too, but these are mainly because he is using Synthmaker to build his stuff. It has a few known problems making it crash and this varies randomly over different plugins. Some work just fine, others crash, especially if multiple instances are used and so on. There is hardly a reliable pattern.
Even had some weird things happen with Epicverb, which made the mouse pointer disappearing completely after adjusting some parameters and i had to shutdown Renoise.
I had these problems with Rescue, RescueAE, Tessla SE, Density and Epicverb. The only ones i’ve kept currently are RescueAE and Epicverb, which seem less error prone. Ditched the rest because they weren’t reliable enough. I do remember reporting him reproduceable crashes with Rescue and even supplied example projects, but all he was able to do was to file a bug report in the Synthmaker forum which was kinda ignored back then. Don’t know how far they are into fixing these. For now i’m trying to avoid anything made with Synthmaker and also Synthedit.