I found this module incredibly easy to navigate, tweak, and use in any number of patches, from simple ADSR style envelopes through to much more complex sound mangling. The menus are minimal and focussed, making it easy to dial in what you want, how you want. I found the trigger time to be instantaneous and using it to self modulate also brought some great results. Also dialling back to audio rate, whilst not super precise (I mean, that's not what it is made for) did give some very interesting waveshapes too.
10/10 would buy this module again.