So I had a good critical listen to the square wave and I have to say I'm very impressed, I had it running with my 303 and the differences were negligable, in fact I have heard more variation between 303's than this.
The resonance is ok too, not quite as high but I'm sure a simple resistor swap would sort that out.
Pretty much everything else is like an improved version of the 303 and with a few mods I think it would be even better.
So well done Limor and the team, I have owned many 303's for the past 18 years and I'm a satisfied customer
One anomaly I did notice though (and this may be a firmware issue) is the handling of accents on rests, you sort of get a ghost note!

