1. Be the first or wait for other reviews. Why first? Because usually the first orders, are well done. 2. After a couple of positive Reviews, ask for a sample. 3. PM other buyers, whether they are satisfied with the service. 4. If you see a negative review and seller do not respond to customer questions, find another service. 5. If seller speak English (like me), avoid. Why? Because it will very likely come to miscommunication and your site is in danger. 6. If you see a seller who buys the same service that he sells, and leave a positive comment.Avoid Maybe he examines the competition but it is very likely that they are in cooperation. 7. If you see a respected member of the forum to leave a positive comment on the service, check out his other purchases. If he is left only positive ratings, there is something wrong. 8. If you see a negative review, and the next 10 posts only orders(Typically, these are orders from users with a couple of posts), and no one asks for an explanation.Avoid 9. Even if the seller has all the good reviews, be careful. Why? Because most users do not leave reviews, and some are afraid for their sites (negative SEO). 10. Check iTrader Score! Maybe for someone this is hard work, but if you want the best for your site, better be careful. This is my experience with multiple forums so far. Regards!