I disagree about the Apple routers are easier to set up. To start, you need to use their own utility to do it. Instead of a browser like every other router. I can't even reconfigure my older (but still useful) Airport Express because Apple dropped software support for it in the current Airport Utility, and the old one doesn't run on Mavericks. They limit your choices, which can work for some people; YMMV.
Secondly, they are pretty good but not great routers. And that's comparing them to consumer, not business or enterprise solutions. Check smallnetbuilder.com for comparisons.
Finally, no external antenna. Looks nicer, but limits functionality depending on your wifi needs. I would expect to be able to make use of a directional antenna, for example, with a router in that price range.