I have owned two of these antennas. In both cases the wind eventually destroyed them. However, it is not uncommon for us to have 45 MPH winds for days on end here, with gusts well over 80 MPH.
The antennas did seem to work well, particularly when talking about FM operation, such as repeater or FM simplex. I used them occasionally for weak signal stuff at the lower end of the band, but I have a couple of Yagi's for that, so this was only occasional use.
If I was looking for a single antenna 6m solution I might consider this antenna, keeping in mind the limitations for weak signal work.
T!