You will be more than happy with the mini-Q. It is very round sounding and vowel-like. That is what sets Jerry's use of the effect apart from other users. Other pedals tend to be a bit more "quacky" like Warrens sound with PLF.
However, as evidenced in that video, you can quack out the qtrons (whichever the variety) by overdriving it with your signal. The trick to Jerry's sound is to not overdrive that signal, and just let it ride just under opening fully, and hence quacking. I know it sounds silly, but if you've played around with them you know what I mean.
The trouble is that, some pedals are just all quack, and never settle into that boowow bwow boowow jerry sound.