I thought the demo was terrible. I never played the first one, so maybe I'm just expecting too much, but I was at least expecting... something. I got nothing.
I thought the dialogue was laughable and seemed way too forced, and no one seemed to really try to put their voice acting into the characters. The sounds fit the game well, but the actual speaking I thought was terrible.
The gameplay seemed just like any other mediocre FPS, graphics, while nice at times, could also look horribly dated in spots (character models were very good, but everything else was meh). The gunplay didn't really seem to have anything to it, I felt nothing but "oh, an enemy.. press RT; move on". Normally, when I play an FPS, I liked to be sucked into it, taking down an enemy should mean something, and not just mean.. oh, hey, he's shooting me. Let me press RT and kill him. There, now where's the exit so I can finish this demo? The close-quarters combat I didn't find to be much fun either, you pretty much just spam the RT and hope you kill the person.
The drone is an interesting idea though, I'll admit. That part I didn't mind. I dunno, it's probably because I didn't play the first, but I was expecting much better. Disappointed, to say the least.
Also, yes Scorch, there is one Health Station, near the exit I believe; down a long empty hallway, it's a giant brown console on the wall (unless that's not a health station, but it sure seemed like one).
Edit: Oh, and there was another feature I really liked, where when you kill someone, you can take control of the gun from their body, and shoot people with it. I thought that was a very nice feature. I'll also gladly give the demo a second chance, and will probably rent the game, but I'm just saying, first impressions were disappointing.