I was mid-way through typing a lengthy long-winded post explaining why I was left feeling so horribly disappointed by this film, but I just now read this guy's post on IMDB and he perfectly sums up for me exactly how I feel. So yeah, gonna save me the effort and let him do all the talking instead! 
http://www.imdb.com/title/tt1127180/board/nest/139125340
EDIT: Evil Dead II made this film look positively pedestrian in comparison. Any of you that are under the impression that this was an utterly brilliant film, should go away, right NOW, and watch Evil Dead II (or The Evil Dead or even Army Of Darkness) and I promise you, you'll be coming back here with brand new eyes and a whole different perspective...

http://www.imdb.com/title/tt1127180/board/nest/139125340
I watched this tonight in the UK and I was hugely underwhelmed by it. I am a massive Sam Raimi fan, Evil Dead 2 is one of my favourite films. I was really looking forward to this but it was a big disappointment from Sam Raimi, after all the positive reviews it is getting.
The CGI effects were very bad, I thought Raimi was a keen on using practical effects and animatronics. The floating hankerchief, the flying eyeballs and the dragging to hell scene all used very poor and obvious CGI, which was distracting.
The film seemed to stop and start, with lulls of pointless dialogue in between the action. Raimi said he wanted it to be like a rollercoster, but it seemed to drag at times, despite being only 99 minutes long.
Alison Lohman was good in her role, but had poor dialogue to work with, although you don't go to a Sam Raimi film for the dialogue.
Evil Dead 2 is a much better film that DMTH, despite being made over 20 years ago. The pacing is much better, the effects are better, and it is much more exciting and funny.
One thing that bugged was the scene in the car that originally had Christine stapling Mrs Ganush's head multiple times, as was in the leaked footage from comic-con. They editted out one of these staplings so that the scene carried on with 3 staples in her head, even though she had only fired 2. It lost some of its impact and hilarity. I know I am being picky but I was expecting so much of this film and I hate to say it but I was disappointed.
The CGI effects were very bad, I thought Raimi was a keen on using practical effects and animatronics. The floating hankerchief, the flying eyeballs and the dragging to hell scene all used very poor and obvious CGI, which was distracting.
The film seemed to stop and start, with lulls of pointless dialogue in between the action. Raimi said he wanted it to be like a rollercoster, but it seemed to drag at times, despite being only 99 minutes long.
Alison Lohman was good in her role, but had poor dialogue to work with, although you don't go to a Sam Raimi film for the dialogue.
Evil Dead 2 is a much better film that DMTH, despite being made over 20 years ago. The pacing is much better, the effects are better, and it is much more exciting and funny.
One thing that bugged was the scene in the car that originally had Christine stapling Mrs Ganush's head multiple times, as was in the leaked footage from comic-con. They editted out one of these staplings so that the scene carried on with 3 staples in her head, even though she had only fired 2. It lost some of its impact and hilarity. I know I am being picky but I was expecting so much of this film and I hate to say it but I was disappointed.
EDIT: Evil Dead II made this film look positively pedestrian in comparison. Any of you that are under the impression that this was an utterly brilliant film, should go away, right NOW, and watch Evil Dead II (or The Evil Dead or even Army Of Darkness) and I promise you, you'll be coming back here with brand new eyes and a whole different perspective...