Remember, these are only access points and not routers. They also require Power over Ethernet. The retail boxes DO come with a PoE 'injecter' adapter in case you don't have a switch with PoE ports. The boxes also come with various mounting screws for wall and ceiling attachment.
My favorite part: Manage all devices from one software package
The software package does require JAVA to be installed (this is how they get cross-platform compatibility); There really isn't a huge problem with this, aside from all the security issues that plague JAVA.