The science behind finding your perfect match ?

http://mashable.com/2017/02/07/science-of-compatibility/#U8mh5aYHBsqW
 
The perfect match does not exist.
It will only exist a pool of compatible persons, not more than that.
They can not promise a perfect match.

eHarmony is a 16+  years old obsolete site and a HOAX, based on a big scientific fraud, only sustained by big marketing budget.
The Big Five normative test used by eHarmony and EliteSingles/eDarling, had been proven/revealed as an incomplete and incorrect model to assess/measure personality of persons.
 
Very easy to copycat eHarmony, but very difficult to innovate: a 100 times better algorithm than eHarmony.
http://onlinedatingsoundbarrier.blogspot.com.ar/2016/10/very-easy-to-copycat-eharmony-but-very.html
   
Please read: The 8 tips to innovate in the Online Dating Industry!
http://onlinedatingsoundbarrier.blogspot.com.ar/2013/12/the-8-tips-to-innovate-in-online-dating.html