Using a Wireless USB Adapter in Kali 2.0

Hey everyone... just my first post here. I'm looking for a wireless usb adapter to use with Kali 2.0, so I started some research on the most wanted adapters for hacking, that must include Monitor Mode and Packet Injection.

My question is: since I've found lots of information in forums about this, I couldn't find one speaking about the possibility to use the adapter running Kali in Live mode, not in a Virtual Machine. So I ask you guys, can I install and use a wireless USB adapter in Live Mode?

Another question: Here in my town I found the TP-LINK WN722N USB adapter, for a good price, so I wonder if this adapter is still a good option for Kali 2.0 or it has become obsolete with time...

That's it... Thanks!