I did 5 runs, maybe that's not many, but here are my thoughts:
1. The game is fun, it feels good to play, you can kill stuff. I like the different weapons and how each one have their use. The idea that depending on the weapon, your range of vision is different gives the game some identify,it makes it stand out.
2. The game looks nice, I like it, even if it's simple looking.
3. I didn't like the controls: TAB is quite a hard key to press, it's a bit too far, I was expecting to use SHIFT instead. Using the 1,2,3,4 keys isn't much better, but it's ok, it just required some getting used to. Maybe you can experiment with using the scroll wheel because I've played games that use it to change weapons and I thik it's more confortable, it also matches the zooming in and out aspect of the game.
4.Since there is no direct tutorial and the only way to check how to play is the option "bindings", I started playing a bit confused. I had to remembered some posts I saw on twitter and check the "bindings" option to understand how to play. It was not too hard to learn tho.
5.I was expecting rogue-like/lite elements, but it didn't have any, which is ok, not every game that looks like this has to be. However, I'm sure many people will think this is a rogue-lite and ask for rogue-lite features. Again, it's ok if it's not a rogue-lite, I don't even like them that much myself lol.
Nice fist game, it was a good start.