When playing the game, I did have trouble with the first wave due to only having a SINGLE life, which is annoying that I needed to defend against something that was strong already on the FIRST wave.
This was a large issue I was having until I got to the second wave, where with enough money, the game was very easy due to the amount of towers.
Anyways, with the positive things, I do like that I was able to place towers anywhere on the grey tiles, which allowed freedom with the tower placing. I also enjoyed how the map looked with the trees and bushes, which made a great background to the game.
However I did have a few things I didn't dislike, first was the first wave and how annoying it was, which I will not go further here. I also didn't like that some of the towers felt like they did nothing due to the slow fire rate and how they didn't even hit a enemy once when it gone past their whole range. I also don't like how I didn't see the range the towers have, which did get confusing with Sniper which putting in the bottom right corner made it nearly did NOTHING.
Overall, this game is enjoyable just with major flaws which made it annoying to play.