Hi Chinpira,
Yes indeed, the Befaco - Litch looks from a functionality point of view a bit like the Polygogo or at least they certainly have some similarities. Obviously the screen is missing with the Litch. The Litch, at least in that demo you provided here, it is MIDI driven, which is not my preference, I rather have direct controls. On the other hand the Litch can produce some real crazy sounds too! :-) I guess for someone who doesn't mind to use MIDI, the Litch is indeed an alternative to consider.
Kind regards, Garfield.
For review reports of Eurorack modules, please refer to https://garfieldmodular.net/ for PDF formatted downloads