First I bought a very well known and rather old component. I was dissapointed. It was not ready to go pro.
Then I bought DJ-Classifieds.
I believe that is a great component/solution.
It is working out of the box and makes everything look simple. That is because of the great work and thinking of developers.
Also the documentation is very good and updated with the component's current version. That is very important and something that you expect from a paid solution.
You can use the FAQ section and get answers for the most common questions you will have.
I haven't yet tested support... because there was no need for that!
The price is fair for all the goodies you get.
Thank you for this great solution.