This is, of course, highly anecdotal, but my extended network setup with 1 Airport Extreme (wired) and 3 Airport Express (wireless) consistently broke every few weeks or so with one Airport Express refusing to see the rest of the network it was supposed to extend. And it was always a different Express, so couldn't be pinned to a hardware issue or location in the house. Apple support on this issue is relegated to an article on the Web site or some forum threads https://discussions.apple.com/thread/5763681, as debugging it in an Apple Store makes little sense, considering the network setup would run smoothly for days.
One thing that was unclear to me is how long the Airport Utility app was going to remain in the App Store and stay maintained to support the latest revisions of iOS, Android, and respective app store policies. The upgrade path for firmware in case of a security vulnerability is also unknown - something that I'd be okay on some other devices, but not the main home router.
One thing that was unclear to me is how long the Airport Utility app was going to remain in the App Store and stay maintained to support the latest revisions of iOS, Android, and respective app store policies. The upgrade path for firmware in case of a security vulnerability is also unknown - something that I'd be okay on some other devices, but not the main home router.