I just received mine here about 45 minutes ago, quickly hooked it up with my iPad Air M1 and played around a little with iGrand and Pianoteq (demo still, but damn I need this!). Initial impression - I LOVE the action, and this is right out of the box and after 15-20 minutes playing only, haven't even had time to hook it up with the computer and fiddle around with velocity curves etc. In addition, it is a beautiful board, sturdy, clean design, and feels very "Modern", so far the GUI wasn't rocket science, opened an Init preset and fiddled around with the knobs and buttons until I grasped what it was about, 2 minutes, tops!
I plan to use this mainly for Piano/Rhodes et al, and this will be just perfect, it actually reminds me a bit of the action on a well treated Fender Rhodes. Coming from the Organ/Keyboard side, I have no background or history whatsover with acoustic Pianos at all, Rhodes, yes, lots, and I bought it for practice and travel (it's a pretty neat little board for what it brings to the table!), but I can tell it definitely will be of use here for other situations as well (obviously). The action feels like it will be exactly what I need to get some proper Piano practice.
On a note, I've read that some people experience the action to not bounce back fast enough, dunno, I'm no Jordan Rudess, but I tried this just becaue of reading about it, did some quick repeats on a key with both one finger and two (faster), I am honestly not able to reproduce and hence can not confirm what I read, there were no problems in this dept. at all ime.
For synth and ditto, at least with the curve that is loaded per default, this is probably not the ideal situation for many of us (tested some synth instruments as well just for the H, not even close to great). In my case, I have a Novation 61SL MkII with a fantastic synth action (TP/9s if I remember correct), one of the best boards for these things I have ever had my fingers on, so that part is covered here already.
The included momentary pedal for sustain was nothing to write home about, though I have a bunch of others and this went in the drawer right away, a little bit surprised it didn't have a switch though, but who cares really, I even think most synths have a setting for that these days...
Will keep you posted further down the line.