Gif shoots caught me as well :) The gameplay is really nice. It intrigues and you are trying to understand how everything works here. Music is nice but bothering after some time, and I played a lot. There are some UI or controls issues already mentioned. (E.g. why should I press "B" when there is a lot of buttons near WASD? Or even RMB?). And also balance issues, so I just built 2nd available factory and won the game using it only. There was too much money available.
Yes, there are a lot of things you can improve/expand in this game. But it's really cool work you have done already in a couple of days. Impressive! Great work!