Depends on the upload speed. If it’s symmetrical it’s totally worth it. If not, 500 down is more than enough. I’ve got a 30/1000 connection from Comcast and it’s infuriating. It was on sale because “Gig speeds are here!” but it’s a joke. I’d take a symmetrical 250Mbps connection over my 30/1000 every day of the week.

If you’re not worried about spending some extra money, wire your APs and go for something like Unifi. You’re not gonna find it on “the ‘zon” but it’ll do way more with way less. If reliability is critical, meshing of any sort is the first thing to eliminate.