I haven't got around to System Shock 2 yet.
I played System Shock 1 back in 94/95 and absolutely loved it! The atmosphere, the blend of gameplay, it was extremely innovative for its time. And it was tough too!
From what I gather the sequel just remade it but where it was kind of ground-breaking 7 years before, the sequel was probably less so. I think they made more money with the sequel though as I know hardly anyone that played the original but lots that played or at least know of, the sequel.
The clunkiness of it - for me back then - I didn't even think of it as I was too amazed by the game itself. But I can understand today, with the highly polished shooter/RPGs (Deus Ex is closest that comes to mind) it probably doesn't compare well in terms of the 'smoothness' of the experience. But I would hope it makes up for it with depth, atmosphere and storyline.
Really want to play it... I secretly want to get laid off at work... take a year off and catch up on my game backlog