Inconsistent, unreliable, and a broken system, to say the very least. At first, I couldn't even purchase any credits, to begin with, after waiting a whole week for them to respond, by then, I no longer needed their services. They charge high prices for something that doesn't even work effectively nor adequately. The customer support is nonexistent. Therefore, it's tough to get any feedback or help at all. Use another service, save your time and money, what a waste this is. This website is a disgrace to TurnItIn and students. Mark my words, you'll regret spending your time and money here...