I've just tried it. I like the idea of having the UI of all the loaded plugins visible on the canvas, while also being able to zoom in/out the whole view.
Also, while I generally prefer native GUIs to webapps, I can see one potential advantage here: the main window as well as the web browser (where the main workspace opens) supports Wayland natively, so no reliance on X.org or XWayland. (Sure, most native plugins work fine on XWayland on Sway, but some of them have slight bugs or flatout refuse to work.)
And of course, look at the number of bundled plugins! Looking at the list, I recognise a few of them that can be useful even for me, who is not a guitar player. This is a nice opportunity to try some of the other ones out. (Oh, and good thing they can be copied to
~/.lv2 so they can be used outside MOD Desktop.)
I'm curious to see where all of this goes.