Concept is pretty similar to Love alarm - in both we have apps which "help" with love life, in Love alarm it was showing who loves you in nearby while in Big data romance it show how well would match based on things you like. It was cute, light and easy to watch - forgot to mention that I treat it as a movie - but I have to admit that their argument and accident were unnessessary, it could be done better. It could work better as a short drama, sill worth watching - especially if you like Song Jae Rim (RIP) - I really wished that we would get him with Jeon So Min in next drama, cause their chemistry was so cute, but it's impossible :(