I purchased a http://www.asus.com/Networking/PCEAC68/ a few months back to use on my plex/backup/minecraft server, with the intention of also possibly using the server as a router.
I haven't had enough energy or patience to try messing with using it as a hotspot yet, because I haven't been able to get it to connect to my existing router to download updates and software.
It is seeing the available networks in my apartment just fine, but will not connect to my SSID.
The related bit of lspci:
03:00.0 Network controller: Broadcom Corporation BCM4360 802.11ac Wireless Network Adapter (rev 03)
sudo dpkg -s bcmwl-kernel-source | grep Version
My belkin usb adapter works just fine. (that's actually how I'm posting this)