I guess in contrast to a lot of people here, I have had no errors on W7. The game is a nice afternoon distraction discovering how to make each letter. There are a number of QoL features that I like to see added like being able to select multiple factories and move them all at once and blue prints.
Some minor gripes, W's aren't upside-down M's, triangular brackets aren't sideways V's, and Z's aren't sideways N's.
If the dev's really wanted to, this game could be quite a bit more taking a lot of pages from shapez.io.