Fun- Had a lot of fun with this game, really like the style and silly references. Though it seems fairly rushed from the start and put me off a little. I'd also like to see a production display.
Balancing- It was great at the start, but it got way too slow at the end. Buying workers didn't seem to speed it up beyond a certain point so I ended up having to wait quite a while to get the last stretch done.
Uniqueness- Fairly standard incremental. UI looks quite nice though.
Theme- Not sure how to really quantify this. There are hints of time travel and fixing time, but it's not really something you consciously think about.