Yes there are a number of poor quality lists in the marketplace. Before buying ANY product online especially mailing lists or other digital products we advise you to carry out due diligence via the web prior to purchase. Visit respected sites such as the Better Business Bureau and search for company and product name/type to see if there have been complaints. Do the same via major search engines such as Google – search for company or product name followed by words such as complaint, scam, rip off etc. You will not have to search for long to discover the vendors to avoid. Unless mentioned on the Home/Introduction page of the list in question we do not provide testimonials as we do not wish to give out the names of our customers.