Hmm.... I think the IMDB rating of 2.7 is too low. I'd give it a solid 4. Frankly, I think it owes more to "Scream" than to "Hellraiser". That said, most of the sad offerings within the Hellraiser franchise are pretty awful and this certainly isn't the worst of them. The acting isn't too bad but I really do not like the new Pinhead. Original Pinhead is a Cenobite of few words.
Remember Kirsty in the first one,"You've done this before, right?" to which he answers," Many, many times". Pinhead doesn't get emotional. He doesn't get all worked up. Taking souls, rending flesh, administering agony and ecstasy, this is what the Cenobites DO. What they've been doing for millennia or longer. THAT is the scariest thing about them. They can't be frightened off or bribed or appealed to. This is a day at the office. To be fair to the actor, Steven Smith, I think he did his best with a lousy script.
As a stand alone horror flick, it was good enough for me to watch all the way through. The original "Hellraiser" was a work of art, a truly brilliant movie. To compare this movie to the 1987 classic would be unfair, so my "4" is based on comparison with other modern horror movies. Watchable but ....meh.....