I had an unfortunate experience with First Tuors. I paid for the details of a tutor who then told me that he mainly did group lessons. He is not allowed to give this information out on the First Tutors site. He offered me a 1:1 slot which was too late in the evening. The other tutor I contacted replied initially and then closed his account with First Tutors. I then found a suitable tutor on another site, but First Tutors have not yet refunded my money despite several requests. They have offered access to another tutor's details free of charge but I am not in a position to take this up as we made other arrangements.