I have a PageFlip firefly and like it a lot. In my piano group, one of the other members was having issues with her AirTurn device (I think it was too sensitive and would jump a couple pages). Not sure if it was the model, her specific device, or the settings, but I said I really liked mine. She tried mine out and liked it much better than hers. She went ahead and bought a PageFlip firefly and seems to be happy with it.
Anyways, just another perspective…. Mine is close to 5 years old now. It had been having a few issues recently (seemed to be less sensitive), and then it died! I put in new batteries and it’s working like new.
I’m honestly very happy with it, and when it does die a permanent death, I think I will just replace it with the same model.