The ending ate a big chunk out of my prior enjoyment. I was so bummed I didn't bother reloading to view the other endings :-/
It's obviously the developers were, frankly, a bit embarrassed of the conspiracy theory side of Deus Ex lore, so instead they pursued the relentlessly middlebrow "robot arms: good or bad?" ethix debate and as soon as the story showed signs of taking flight they put a lid on it. And the last level was so bad!
It's still a minor miracle that This Type Of Game exists in 2011 but you can't really mention it in the same breath as the original. It's definitely Enough Monkeys rather than Shakespeare.