Got to say it first: I enjoyed this Scarecrow look! At first I was thinking that it is indeed original, by far, afterwards, maybe a little dumb, but after hearing the explanation in the plot, of how it got that way, yeah, hands down to this concept! I approve!
So, Scarecrow 2013: a very nice and enjoyable movie, of course you must NOT expect too much, just some innocent fun, some almost scares, the most standard horror moves, "let's split off", "let's do that", "I can't believe it is real", and so on. But overall, better than those tryhard movies, that get lost in their own work. I approve to this one, for a cheesy cliché horror night!
Really, not much to say about it, either you love it, or not. But if you do lower your expectations, and just sit, watch, eat popcorn and make fun, you might be in for exactly what you have hoped for. Fun fun fun!