Pretty much as advertised. Bluetooth app is basically useless except as a remote display of readings. A Wi-Fi connection and web page display that could be downloaded and saved to a PC would be much more useful. Still a neet device for monitoring power usage.
Ok for the buck, everything works and it's quite accurate. LCD backlight is not uniform (too bright at one side), LCD looks low quality (poor visibility at some angles). Bluetooth connection is functional (BT-serial), you can download Android app from Play store - it is called "E-test". It appears the same as one on the given link (although I think it's safer to get it from Play store) .