But it is the best in design and usability. IMHO, other routers I have to deal with were a pain.
Having said that, I liked more the old design (MacMini style) than the new tower style, but it still beats other networking gear.
Usability? I beg to differ. Sure, Apple has a sorta nice looking little interface with their proprietary Airport Utility, but when you run into problems you realize just how limited it is. And those of us with older AE/AEBS equipment found to our detriment that Apple deprecated the much better Airport Utility 5.6; it won't even run on Mavericks. Most other router manufacturers use the simple old web interface, and standard terminology. An ancient Linksys in some ways is easier to use than equivalent Apple equipment for this reason. It may be years before you run into this problem, and maybe your equipment is semi-disposable, but then again maybe not.
And remember a router is just a radio, or pair of radios. The lack of external antenna connections is a severe limitation if you really care about reception. But it looks nice that way, if you like that sort form over function.