TL;DR: Cheaply made, short, very limited, too easy, annoying controls. Don't waste your time!

* Limited game mechanics: Other than picking up loot, there are only opponents with view cones on pre-determined paths and security cameras shielding areas that you deactivate via terminals. That's it. I thought the game would offer more challenges in the later levels. It never does.

* Poor control mechanics: Only the floor should register movement clicks, not walls, and non-locked doors stop the pathfinding even though the player character could easily open them himself. This leads to endless frustrating "I can't get there" clicks.

* Mouse controls cannot be changed, no keybinding. If you're accustomed to camera controls on different mouse buttons or reverse movement, you're screwed.

* The best view angle for playing is top-down which makes 3D almost obsolete (not that the graphics are good). However, you cannot click doors in top-down, so you need to pull to isometric which sucks because the game does not hide obstructing walls like professionally made games (the Sims etc.). The "map" function cheaply paints everything with render-above-all glow borders which create confusion. This is just cheaply made.

* The pub level requires you to do something outside of the level which makes no sense and I'd bet most players only figured out with a walkthrough. Annoying! This was the only difficulty I encountered. Otherwise, the game was way too easy.

* The game is also short, but I won't complain because I got it for $1. That price is appropriate. It's cheaply made and very limited. Don't waste your time, there are much better stealth games out there.