I picked one up a couple weeks ago. Have done a few downwinders on it in low 20kts and finally had a good flatwater session at woodies yesterday 17-20kts which was perfect for trying new unhooked tricks. My mate ben (h20fly) gave it a good try then too and was raving about it. I'm pretty stoked with the kite.
Not too sure about the top end, when it gets windy I'm jump on my 7m and do a downwinder.