my gf has charter..i have twc...the charter dvr is slow and the adverts on every page of the guide sux.. she gets sporatic glitches on HD chanels. multiple service calls only a temp fix. she cant watch any pay on demand Hd because of the freezes..however a call to charter gets it credited back and a service call....the dvr is always missing recordings and reboots dont solve the problem. she doesnt have any complaints on the internet or phone service though.