Avoid at all costs! They take money upfront, but it does not guarantee that you will even hear from any of the tutors. My son signed up to this company for some language lessons. He contacted a tutor, who responded once and then stopped responding to his messages. After a month Superproof took the next payment, but the was still no response from the tutor. When we contacted Superproof they informed us that the fee was just to access the tutor's contact details, and it doesn't actually matter if he gets any tutoring at all. The fee DOES NOT go towards the actual tutor fee anyway. So now we have paid two months' worth of fees for a service that was not provided.