I purchase this to avoid pay $ 7\/month rental to Verizon - at $ 80 , this will pay for itself in 1 year . the installation be easy , but I have to contact Verizon and provide they with information about this modem so that they could configure my account . the direction actually state that the cable supplier may need information about the modem so I give they credit because direction for computer equipment be usually pretty poor . I have have this about 1 month and the it have work well ; as stable as the modem I be rent from Verizon .