The first thing that stands out: it's loud. Very, very, very loud. When I first started using it, I had to put a limiter on to keep from triggering automute.
But...it's also good. I seem to come up with some new and interesting sound every time I tinker with the knobs and buttons.
- Open source. Check out the plugin's GitHub page. I haven't tried building it, but the instructions are straightforward. No dependency hell you usually see on open source stuff.
- Straightforward. VST interfaces tend to be a mystery unless you want to read every one of their 50 page manuals. As a fiddler, I like to figure stuff out by touch, and Helm makes this easy.
- LOUD. Depends more on presets. The pesets that come with it are mostly okay, but the presets you can find vary a lot. Loudness may be a pro depending on your perspective. :)