I followed the instructions here and it seems to be working.
Just for comparison I would like to try windows drivers throgh ndiswrapper but I'm getting some trouble in getting it working.
First thing I did was to blacklist linux module putting 'blacklist rt3573sta' in /etc/modprobe.d/blacklist.conf.
Then I installed the driver in ndiswrapper through .inf with:
All seems fine 'cause:
sudo ndiswrapper -i netr28ux.inf
...but the adapter doesn't appear neither in ifconfig and iwconfig.
$ lsusb | grep NetGear
Bus 001 Device 004: ID 0846:9012 NetGear, Inc. WNDA4100 802.11abgn 3x3:3 [Ralink RT3573]
$ sudo depmod -a
$ sudo modprobe ndiswrapper
$ lsmod | grep ndiswrapper
ndiswrapper 283323 0
$ sudo ndiswrapper -l
netr28ux : driver installed