Well, its $10 less per month roughly..
(say roughly, as you will have to go up to the new hitron CGN3, so may be an increase on modem rental)
So you would be saving money, and have more potential speed. Might help overall.
Only thing is you would be taking a 30g / month drop in usage. IF your internet usage is under 120g each month, i dont see why not to switch.
(if you have home phone and TV as well, you may be able to get 200g usage for free anyways)