The problem is how can they legitimately do what you said (and they claim)? How can you get to know someone enough to be able to match them appropriately without spending the amount of time friends spend together? In order to do that you can't really save anyone time, which is what they claim to do and it would probably cost even more than it currently does.
After all, dating sites are nothing more than automated versions of these matchmaking services. The services exist that claim to do what you were asking about, I just think it's nothing more than empty promises with an inflated price tag just to make it seem more personal and tailored to you as an individual.]
But then again I'm a complete cynic.