I closed my 1st deal within 2 months of becoming a Trulia.com Pro. Closed 2nd deal within 4 months of becoming a Pro. I can keep going but I will stop there. Definitely worth the money, but you do have to put effort into it by marketing yourself. But, I also combined Trulia.com with my facebook pages I would list a home for sale then "SHARE" it with the 750 people on my facebook page. I guess it is a little bit of every thing that does it.
If helps if there are no Pros in your area:)