This model is one of the best they built, it's the only one that they put 8 antenna's in, and the only one that has free security for the life of the product.  It has duel band 5Ghz, isolated guest network, very secure can customized, you can customize which deco connects to unlike any other ones out there,  I tried them all and this one was the best.  Moving to a smaller place and no need for them.. They are in perfect condition and so so easy to us.  incredible coverage, no dead spots.