Mine sucks, my ISP claims 60mbs but I get 30 and 15 mbs at random times during the day, sometimes it even goes down to 5mbs and then it dies.
My upload speed is even worse, 4 to 6mbs.
Lesson learned, stay the forget away from Charter Communications Spectrum Internet, and I can't wait to be back with Verizon and my 150mbs upload and download speed.