Manually tweaking could mean installing a compilation environment and use AUR to install a good driver. Any linux newbie would fear such operation
As for me, using the 2 wifi dongles I own :
- one worked without a hitch
- the other one is really troublesome : it's detected by the system, can list APs, but won't connect to any. The same dongle works just perfect on my everyday ubuntu PC ...
I've had reports of :
- someone got it working flawlessly
- someone had to install a specific driver