Impressive but painfully slow
Many found it cool, but lots of users on decent hardware got very low frame rates, black screens or mobile reloads, with suggestions like greedy meshing and mipmapping.
Accuracy and coverage gaps
Locals noted missing Old Town and Praga, mangled landmarks like Złota 44 and the castle; the author added the Old Town and is polishing details.
Controls and defaults need tweaks
Commenters asked for strafe movement, non-inverted mouse look, and sunny weather instead of rain, though some joked rain is authentic.