Having spent a week with this, the retriggering with hammer-ons in certain settings is just about the only negative I have. It sounds brilliant, and now I'm learning how it wants to be played, it's tracking very, very well. Having everything adjustable by twisting knobs is just wonderful, can't be a coincidence that the only two synth pedals I've ever got on with have not involved PCs or apps. Fat fingers will struggle a tad though, i can see some finding it hard to adjust knobs without knocking others, which would be especially frustrating when adjusting saved presets.
Did I read somewhere that there is a way of setting the pedal to work as a filter without any of the synth voices in the mix IE a filter affecting Dry signal only? It's not something I've spent long looking for but it isn't immediately obvious to me how.