http://www.rockpapershotgun.com/2011/05/11/ten-things-you%E2%80%99ll-think-playing-deus-ex-3/
Some interesting points:
I gasped a little too loudly when I first opened my map and saw the size the inner city Detroit level, where the game first lets you off the leash. The gasp also went on a little too long, as you can’t zoom out enough to see the whole level at once, so I had to do some scrolling around. It’s bigger than any of the hubs in the first Deus Ex, with more side quests, more incidental detail, more passers by to harass and less loading times.
While the swap to a 3rd person camera when you’re in cover or performing a takedown doesn’t hinder immersion at all (take my word for it?), Human Revolution’s hateful reliance on pre-rendered cutscenes definitely does. These clips are only ever very short, and only occur during the main story missions about once an hour, but they’re still irritating every single time.
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Put another way, during the game’s most dramatic moments, the game doesn’t just take control away from you, it abandons the rendering engine for a rolling video that looks completely different. The last game to have this sickness quite as bad was Arkham Asylum.
The guns feel great. The close-combat takedowns feel great. The sneaking feels great. My God, the sneaking feels great. Getting through Deus Ex without killing anybody was always an option, but Human Revolution positively encourages you to complete whole levels without being seen. Which, with the new minimap and Jensen’s grace when you attach him to cover, is a totally do-able objective, and even gets you an experience boost towards your next Praxis Point.
The preview code ends with a boss fight that you can’t escape from. And that’s not the worst of it.
As I found out after four deaths (mine), two concussion grenades, four stun gun zaps, eight potent tranquilizer darts, three point-blank blasts from a Pulse Energy gun and a final, desperate EMP grenade, you can’t incapacitate said boss, Metal Gear Solid style. You have to kill him. Or rather, you have to injure him enough so that the game can take over and show you Jensen being forced to kill in a pre-rendered cutscene. Which struck me as a pretty miserable ending to everything up to that point.
So yeah, the whole pre-rendered cutscene stuff doesn't sound very good.