Sorry if this has been asked.

Doing some research and it comes down to Deco M9 plus or one other and I was wondering what happens after the free 3years on the homecare?? I would assume you stop getting Virus Def. updates but does it stop working all together, do you get contious pop up telling you "Subscription Expired" how about the Prental controls do they stop working and just get grayed out on the menu then its all wide open for my son or daughters devices???  Having it built in the deco is good but does that mean I don't need Mcafee on each computer??

Any insight is appreciated.