I've used them on and off for years, mostly because they pay quickly and the articles don't require a lot of thought. However, after a long absence, they're worse than ever. The articles I wrote were basic with the SEO requirement. Then I check it in their system and it passes. But then when I hit the Submit button, I get a message stating that Copyscape says I copied this from the client website. For starters, only a small portion of clients give a URL or company site for writers to reference. And they could not tell me what was copied. Even when I changed a few words, I got the same message. I wrote to them several times and never got feedback from a real person - in 36 hours from the initial submission. I've got other clients so this isn't a big deal but this is a warning for anyone who is curious to not waste time with these people.