I decided to give them a shot for a trial period. I negotiated the monthly price down significantly, and if you are going to use them, I suggest you do the same. I have called and emailed 8-10 leads that I was interested in and only 2 responded. With one, the seller decided not to sell after all, and the other really made me think about Z-Buyer. When I spoke with the seller she was puzzled that I would be calling to buy her condo "out of the blue." I explained that I saw her condo for sale on Z-Buyer and she responded that she never heard of them. Then she said something strange, "out of curiosity, how much was the condo listed for on that website?" When I told her, she said, "If I was selling my condo, I wouldn't sell it that cheap."
I complained to Z-Buyer about the lack of qualifying leads as motivated (as they proclaim), and the response was simply, "we endeavor to qualify each lead as a motivated seller."
For me it isn't working and I am cancelling the service. It's a good concept but it is still lacking.