You HAVE to play System Shock, it's such a good experience when you end up having to manage your ammo and your weapons depending on the situations and thinking of what to come .

Fighting follow this ressource management idea, as you'll have to approach each enemy carefully, peaking around corners trying to bait the AI when it comes to tougher enemies that would obliterate you otherwise.
The moments when you're low on health and ammo and you come across an elite enemy are when the game shine, having you engage in all its mechanics to succeed.
Even as of today and with the free look added, System Shock is a fun game to play and didn't lose a bit of its glory.

If you're looking to play a game that'll make you go " Oh, so that's where this comes from ", play it and if you want to play a great game, play it.

The OST will grow on you, trust me.