I personally thought it was a great film. I "loved it" on Netflix. One of the few films I actually watched and enjoyed, all the way through.
I won't spoil it, but yes it's about something alleged to be an urban legend. Yes it's different. Yes it's entertaining.
I don't understand the harsh criticisms? Not everyone's cup of tea? No, probably not. But scathing reviews written by "elitists" is not warranted.