I've not tried E-Harmony, but with some of the other sites I've found quite a bit of "false advertising", with the member profiles.

One that leaps to mind, is a profile of a young lady whom the site listed as being from within 100 miles of my location. Yet in her "describe yourself" section, she told her recent move to the Hollywood area, and some of the places that she visits there.

Last time I checked, Hollywood was 1,200 miles from here or so...and not 100.