I have the router and one of the mesh points in my bedroom, and the other mesh point is in my barn outside the house. Please keep mind the main router is inside my house close to a window, and I have the mesh point just inside a window on the barn. I’m pretty sure if I had placed the mesh point behind one of the metal walls in the barn, I wouldn’t have that good a signal to it. Setting up the system wasn’t difficult for me, but I do have some IT experience. I think my wife could have set it up in just a basic configuration, but I customized mine to my needs.They have pretty good documentation on their site if you are curious. I don’t know how much area you have to cover, so you might be okay with buying the router initially, and then adding mesh points as you need them. They have several different options available, including the Amplifi Instant system, which I have no experience with.