Why use a faster connection as your backup at home, and not primary?
I originally was not happy with the upload on the WOW connection.
I called Wow the other day and they just launched 600 meg service in my area for $99/mo.
I upgraded to that and I was still getting 300 meg service until a few hours ago when I spent $500 on a Netgear router with a 1.7ghz quad core processor.
I get about 350 down 50 up on my wifi on my iPhone and 700 down and 50 up on a wired connection on my computer.
Netflix rocks, all their HD content plays immediately and the 4K content has a 2-3 second delay.
Comcast sadly enough is my backup until they launch their 1 gig service.
The only difference with WOW is the connection seems more stable with my Ip phones which would generally loose connection every time there was a blip in my connection.