I have no experience of a router with Aol, though from what I read in this forum, Aol will only support those they list.
So why not try what you have, but be prepared to have to buy a replacement.
(Aol will give you appropriate ASDL filters as part of the first contract)
What router are you using? Others may be able to help.
If you don't really need more than 1G, you can save a lot of money with Silver, which like all the Aol Broadband contracts is uncapped.
The only downside I can think of is the telephone helpline for silver is a National rate number, but 0800 for Gold or Platinum service.