Demographics*: You'll notice that eharmony is different from the moment you signup.

They are a guided online dating site which means you fill out an extensive personality profile, then your matches are found based on your personality and profile settings. The down side to this is that if you don't have any matches, then you'll have to adjust your profile and have eharmony search again.

eharmony uses their 29 Dimensions® of Compatibility, which is a scientific predictor of long-term relationship success, to find your matches. Neil Clark Warren, a psychologist with over 35 years experience, after exhaustively researching what makes couples and marriages succeed or fail.

The eharmony personality test does take a while to fill out, but make sure to stick it out and answer truthfully because it is definitely worth your time.

eharmony prides itself on having a very diverse membership base with over 33 million registered users from all 50 states and more than 150 countries.

Male members are mostly over 35, while female members are mostly under 30.

You can review just how well these matches are for free, however, you need to signup for a subscription in order to communicate or view member photos.

It also allows all your matches to reply to your communication and see your profile. You also get access to the eharmony Premier Team, with their premier email, phone or live chat support and their Profile Advisor which will assist you with updating your profile to find the best matches possible.We say "guided" because you are not allowed to search for other members as on other sites, but rather you are shown matches based on your compatibility tests and profile entries.eharmony also has millions of visitors to its site each month (about 2,300,000).eharmony offers some Icebreakers to get you started and you can send your match a smile to let them know you are interested.See the "Communication" section below for more info on connecting with your matches.What sets eharmony apart from other online dating sites is their proven compatibility matching system based on 29 Dimensions® of Compatibility.eharmony is dedicated to finding loving, long lasting relationships for singles that are serious and dedicated to finding "the one".After taking your personality test and filling out your profile traits, you will be presented with a list of new matches.You will need to signup for a subscription if you wish to view photos or contact your matches.Basic Plan: The "Total Connect Plan" includes all the features in the basic plan plus a deeper analysis of your personality using eharmony's Premium Personality Profile, Secure Call allowing you to speak to your matches without revealing your real phone number, and Rely ID which quickly verifies your name, city, and age so matches know you are being honest.We feel this upgrade is a better deal and definitely worth it.The "Something To Talk About" section will show you some interest or activity you have in common with your match which can be used as a starting point or a way to get to know your match more.eharmony has some of the best tools and features to get to know your matches so by the time the first date comes, you will already feel like you've known each other for a long time.Communication with matches is handled a bit differently with eharmony as it is a guided online dating site.This means you can't just search for matches or contact anyone you want.