Summary: I do various testing for security with Bluetooth devices and found this adapter to be better than most non-commercial grade Bluetooth adapters in terms of range. It was very easy to use and installed automatically on my Macbook Pro running OSX 10.8.3 Mountain Lion operating system.
Summary: I purchased this used cheap. I paired it with a SENA Parani SD100 serial port bluetooth device in an industrial setting (connecting PLC's). I was very skeptical about the quality of the connection. I remained connected at 57.6k for over two hours with no problems.