I had to wait nearly three weeks for the payment for the book I sold to them, and the USPS tracking page never updated to reflect that they received it. I did not learn of the negative reviews until after I had dropped my book off (I automatically trusted Textbook Maniac because it was listed as a book buyer on BookScouter), and then only reason I did not request that USPS return my package was because I did not have enough at the time to pay for the interception. Thank you Textbook Maniac.