for me the frequency driver was a nice to have; but as it wasn't fully developed, incorperating cpu-idle and various power tables, it didn't do much towards power consumption. Therefor we can easily live without it. Again your efforts are much appreciated.
It's a pity there is no 802.11AC device that is fully working though. the WRT devices have this issue, the netgear devices keep having errors in the logs on the wifi connections. Am still hoping that there will be a "perfect" device eventually.