I purchased a Headwind 3 months ago and I knew at the time it was vastly over-priced but I still fancied one.
I find it excellent, the fan is very strong, the control works from the phone (Android in my case) and it looks nice. I have it to the front right of my bike and that works well.
I have it synced to the HR (Tickr) so that full blast comes on at about 98% MHR - which doesnt happen that often.
I have two minor improvements which I think would help
If you manually increase power of the fan then the blue lights come on to indicate which of the levels you are at. However when it is being controlled by HR whilst the power increases the lights do not come on which I think is a weakness.
I have to remember to switch it on. I would have thought that it could be switched on automatically when it receives a signal from the KIckr or the HR monitor.
Other than that I am very happy with it.