It's not meh, it's good. It's structured like a 1940s movie filmed with today's tech. James Franco plays the same smirky fuck in every movie, but it suited the character in this one. And yeah, it's a great tech demo - it was digitally shot, so the PQ is pristine.
It's an old-fashioned movie that isn't laced with hipster irony or borderline scumbags as protagonists, so I don't really expect anyone under thirty to like it. Nevermind.