I am in for a pair. I have liked the Cloud Alpha set we reviewed.
Mine are supposed to be here today!
On the battery, what I have seen is that you can generally take these apart and replace those yourself if you can use a soldering iron.
Just checked tracking, will be here Sunday, and will give feedback.Let us know what you think of them if you get a minute.
I wasn't able to find anything with google searches for buying a replacement battery. Do they use a generic battery I can order? I did read they will still work over USB in "analog mode" and have a much higher frequency response that way vs wireless mode, so worst case they become usb headphones.