My Bluez arrived today, and so far I am incredibly disappointed by them!
Sound leakage is so bad that anybody within 20 feet is going to know exactly what you are listening to. However, this is mostly a non-issue, as when the headset and my iPhone 5 are more than a few feet apart or the phone is in my pocket, the connection drops every couple of seconds meaning that the only noise coming out of the headset is stuttering and crackling!
This is particularly bad when walking, so listening to an audiobook whilst walking to the local shops was far from the satisfying experience that I had anticipated.
And as for getting them to connect to my Mac Mini - well, they are supposedly paired, but I've yet to get an active connection.
Not at all what I had expected for £100!
I'd be curious to know if others have had a better experience? Perhaps I'm just unlucky, and these are faulty. I certainly hope so, otherwise they will end up as an expensive paperweight!