Bledd, most helpful - really appreciate this. Currently my network is relatively tiny, consists of:
VM - 200mbit, v. unlikely to increase. Unless at renewal I take TV with them and they offer a package to encompass the 350mbit package, 200mbit is more than sufficient for me.
Wired devices currently two (my mac mini and my HP microserver), wireless is only really phones (x2 usually), iPad or laptop if working from home. Apple TV, Sky and Sonos. So nothing is taxing my network.
My previous network (before I moved) Openreach modem > ER Lite & Unifi AC AP
Now it's simply VM Hub > Unifi AC AP & 5 port Gigabit switch
Naturally I'd put my Hub into modem mode and it go VM Hub > ER Lite & Unifi AC AP, again wired devices can go into the 5 port gigabit switch (with 1 port naturally going to the ER Lite).