Who can installs WLAN / Bluetooth of course many slain on Bluetooth, which is a matter of taste.
In my 16 GiB RAM, Samsung 840 Evo 500 GiB and WLAN / Bluetooth Intel a very performant desktop replacement. By two display ports and an HDMI port for up to three monitor to a speaker of this size is all right. Audio goes through DisplayPort or HDMI out (if the monitor's because can, I was very surprised when came suddenly sounds from my monitor). Otherwise, just sound via USB out.
In front is a USB 3.0, which is designed quite robust and also USB 3.0 delivers good.
The NUC is not completely silent when something happens in the computer, the fan starts audible. One should take into account the intended use beautiful, can be disturbing.