Yeah I am planning on taking out a 250mbit/s download 50mbit/s upload service, it won't be a gigabit. I will be trying to use Ethernet cables direct to router where possible as none of my wifi equipment is 802.11ac and my powerline adapters are rated for 200mbit/s max.
Thinking of buying a USB 802.11ac adapter to try and get max speed over wifi, my iPhone 6 Plus has 802.11ac and when I did a speedtest at my brothers who already has the 250mbit/s service it got max speed albeit in same room as the router which is a Netgear Nighthawk R6400 AC1750 incidentally.