We did multiple tests in Windows and Linux with multiple units to be sure. We will have a video test up on our blog shortly which compares the AWUS050NH to both the AWUS036H and the n3 USB adapter.
The AWUS050NH picked up a similar number of APs vs. the AWUS036H, but the signal strengths were quite a bit weaker. In Windows they had fewer bars, whereas in Linux the percentage numbers were lower.
The bottom line is while the AWUS050NH version 2 seems to work a little better than the version 1, if you are primarily trying to pick up and connect to 802.11g standard wireless networks, the AWUS036H from Alfa and the n3 both did a better job.
We are going to carry the Alfa AWUS050NH due to high demand and relatively good reviews from places like Lifehacker. It works fine and when used with an 802.11n router, you will get good range and speed. But for those of you hoping the AWUS050NH version 2 was going to work as good as the AWUS036H but with added N capabilities, at least where we are located that does not seem to be the case.