I don’t have one, but I had mixed feelings about it too. My first reaction to it was: I don’t see why they couldn’t have added loop points baked into each shape preset where you can hold a gate, for ADSR and looping patterns and so on, without compromising the design. (Had they done that, I could justify replacing another envelope module or two with Zadar.)
Other people over on MW have lamented it not having some kind of tempo sync option, or multiple CVs per envelope.
Spiky transients to excite resonators or do AM is a neat idea, but since it doesn’t do gated envelopes, I can’t justify replacing anything with it. ¯\_(ツ)_/¯
Meanwhile: a new Learning Modular video demonstrates running an envelope through a resonant filter to give it spiky bounces, and I’m pretty impressed. I’m going to experiment with that and waveshapers etc. to see if it does what I want it to – or simply combine an envelope and LFO, or design some samples for E370 to use as envelopes, or the like.