Compared to SOF 1&2 this is a rough game however the series was always rough the game itself is not terrible however the glitches present in the base game (I am unaware of any patches or fixes by gog) are more than annoying and tend to render the game broken however there are ways around the more pressing glitches such as hitboxes not working (windowed mode) and the more pressing issues being silencers not working as the AI acts as though they dont exist and the lightly put difficultly spikes that go from bad to insane as the enemies get better weaponry if you love this series it is worth trying however know what you are getting into as imersion and stability are not this games forte