Unknown for WIFI coverage. It is VERY dependent on your specific construction, neighboring WIFI interference, and device. I wouldn't recommend EITHER of those routers. They are 2.4Ghz WIFI ONLY. If you want a TP-Link get an AC1900 class router like the A9.So, Both routers can handle the speed and work good. For wireless connection is the same ? Can I get the signal after three rooms ?