I have a Motorola SURFboard SB4200 modem, with Comcast service (I live in Delaware), and love it. The modem is about a year old. I was renting a 2 year old RCA modem at the time, and when I bought the motorola I saw no speed difference. I like that you can put it in Standby mode for when the computer is off, and it won't loose the signal - just press the power button again and surf away!