I'm thinking about buying a DreamQ-V device that recently became available. It suppose to be like a heart rate monitor in that it watches for the spikes in heart rate usually associated with REM. It sends a signal to a wrist or ankle band which in turns sets off vibrations to get the sleeper's attention that they are dreaming. It is meant to increase the possibility for lucidity.

Has anyone purchased and tried this device? I would very much like to find out how this has worked before I spend the $210 to get one.