Had my unit up&running two weeks ago, but I found the wireless adapter to be running damn hot.
After testing for days on my office desk, wireless connection started to brake off from time to time, getting worse over time. Finally - I could not establish the connection anymore, Pi got stuck on starting the host.
I tried to plug the adapter into my computer - it was doing fine - but not with the Pi, no clue why and how that happened.
Got a new adapter yesterday (different brand, 10€ instead of 3€) and a new license from lee - its now up & running again. temperature of the adapter is still warm, but not as bad as before.