For those that have used these routers would you please comment on the maximum coverage you've seen by 2.4/5/6GHz band (3000, 4000, 5000 sqft)? I currently have a RT-AC5300 that barely covers the house and am looking to upgrade (perhaps using the RT-AC5300 in a mesh with one of these routers if one of these won't do). Any Merlin-capable suggestions are welcome.