1. At an Internet speed of 100/50 Mbps, 95/49 comes out from the provider via lan. By WIFI on a laptop 35/25, on Ipad and Iphone 30/25 2. If it were possible to add external antennas, then there would be a spacecraft, not a router 3. Although the setup is more complicated than on simple routers, there are so many instructions that even the "read and poked" method will work out. If you are thinking to buy or not to buy because of the complexity of the setup, then buy 4. Previously, there was a DIR-300, so when you turn on, for example, a video on youtube in HD, it greatly slows down work on other devices. I’m generally silent about the torrent (you could just forget about the normal Internet on Ipad / Iphone).
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