Wow, I'd suggest being a little more patient if you think the site might work for you. I've personally been on eH for over 2 years and there are periods where I get tons of matches in rapid fire, and periods where I go, like you said, more than a week without a match. As someone else said, expanding your search criteria may help.

That being said, it took me probably 2 or 3 months before I started getting matches I felt might have potential for me. I've had quite a few dates with "almost rights" but just haven't quite met the exact right one. Give the process time and good luck.