I cannot overstate how dramatically this game has improved over the past couple weeks. I have updated my original score to reflect the improvement of the changes.
I want to like this game, but upgrading early takes WAAAAAY too long. It takes 1500 gold minimum for a second turret. Which means the best way to play for the first half hour is to just die over and over again so you can build your starting gold while you wait for the Offensive upgrade to unlock so you can finally start working on your turret damage which will allow you to get past the literal first wave. .1% isn't an upgrade, that's an insignificant number that says it's not worth investing in. Same goes for the upgrades that increase a number by .05%.
The bullets from the minigun are either so tiny or the coloring is so light, it makes it really difficult to see where you're aiming. Specifically when you need to shoot down enemy missiles.
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More changes on the way :) Thank you