I've been with the service for about a year and a half and recently quit. Dating is a numbers game, but EH provided at most around 5 matches at a time. The sporadic frequency of the matches makes it hard to get to Open Communication. Think about it. Either you close off your matches, or they close you off. At best, about 1 out of 5 wants to start communicating, but that doesn't necessarily mean you end up in Open Communication.

The main thing about the service is not to consider it a magic bullet. Like any cross-section of people, your matches will range from the sincere to the flakey. As long as you're open to getting to know someone and vice versa, then you'll probably have a good experience with the service.

My only advice to people signing up for EH is that you should not write a barebones profile and expect a response if you don't post a picture. Unless you write such gifted prose that you're on the shortlist for the Pulitzer, don't expect your one-sentence responses to be sufficient.