I purchased the Røde Deadkitten for use on my Tascam DR-05. As the Deadkitten is a general purpose windshield it can be used for several products. It fits great over the microphones on the DR-05 without covering the display.
I recorded a small concert outdoors a couple of weeks ago, and the wind was quite strong, 10-15 meters per second in the gusts I think. The Deadkitten handled this kind of wind very well. The Deadkitten does not degrade the sound quality either.
I keep the Deadkitten in a small ziplock bag along with the recorder. The ziplock bag makes it possible to press out all the air and the windshield takes up a lot less space, plus you don't get strains of hair everywhere in your bag.
I am very satisfied with this product. I have bunch of other Røde products. They never disappoint.
I tested out the Dead Kitten by recording in the garden on a slightly blustery day, allegedly caused by hurricane Bertha. My intention was to get a recording of the wind through the trees without the dreadful sound of the wind smashing on the microphone. I got the recording without any trouble.