They are selling 2 seats for the midnight matinee for £60 each in the upper circle. These will be the only two seats sold in this circle!! Now THAT would freak me out. I would TOTALLY DO THAT if only it weren't £60.
Mama, it's quite Marmitey. Some people find it frightening, some people don't. Some people think it's a good play anyway, some people think it's a load of rubbish. I personally think it's unsettling rather than frightening, and I think it's a good play even though it's not as scary as I hoped it would be. But of course, it's all subjective. A lot of people don't find it that scary, and some people say it's bad, and a lot of *those* people say it's bad because it's not scary. XD
Don't go in expecting to be frightened, judge it on its own terms, and draw your own conclusions. But it's definitely worth a look, however you may or may not be ultimately moved by it. :)