The fact that this movie was set in the shadow of Chernobyl was the main draw for me. The story is set in the abandoned city of Prypiat, the eerie industrial background as much a character in the story as the six young adults who find themselves trapped there when an "extreme tourism" adventure goes wrong. The acting is sort of what you would expect from this sort of movie: nothing spectacular. The story has a hard time getting started, the setup is clunky and doesn't really reach the goal of making us get to know and like the main characters (which may have something to do with the mostly flat, with occasional spurts of over the top, acting.) And the story is also a little predictable, with an end that kinda sorta fits with stuff we see during the film, but not really, so while it has some shock value, when you think about it, it's kind of ridiculous. The one thing that is not a "meh" with the film is its setting. The abandoned city provides plenty cool, creepy places to explore, run through, get trapped in, etc.
All in all, would I recommend it? If you are a horror movie buff, then yeah, I'd say go see it. It won't be your favorite, but you probably won't be sorry. If you aren't, then I'd say pass on this one... the summer's young, there's sure to be better.