This is a frustratingly hard game that requires patience and mastery of the controls. When you get it down though, it can be an amazing game. I tried playing this game several times and gave up due to frustration, but through some patience learned how to play it.
For it's time the graphics are amazing. Sound cues are great. There's some annoyances though that keep me from giving it a spectacular rating.
I realize the name of the game is stealth, but there were plenty of opportunities when even if the guard heard me, I could have bum rushed him before tripping an alarm.
I also felt like there was only one way to do many things. There were plenty of situations where I would have loved to try different scenarios, but the game had pre-programmed one successful route.
Again if you are patient and can deal with some of the glitches this can be a pretty amazing game. It's AWESOME when a guard is standing right next to you in the dark and doesn't see you.