Recent reviews by notamortal

Pros: Good graphics; Interesting base defense concept; Really like the whole power management aspect of the game with the constant repairing of the power poles and the secondary power generators (depending of level); The fact that you can rescue different animals and collect them in your personal zoo is a nice touch; I really like the destruction of the enemy units; The sheer power of your weapons once fully upgraded; So many perks you can unlock to boost your defenses; Really nice dev team to talk to (very responsive and polite); Good Price for the content it gives; Very good performance and many more stuff I really liked.
Cons: Still needs polish; UI is kind of hard to look at; The AI voice could need some improvements (the announcements can be annoying); Some bugs here and there but it is still in EA so I am not worried much; A space expansion would be cool or more sci-fi weapons and defenses; More Enemy units (with special powers like shields, rocket launchers/lasers that damage your defenses).
Overall a nice game for a good price that can keep you busy for hours while you unlock new perks and tune your defense powers.