I would consider the Tzumi Lava Speaker a good product overall.  I love that it is both a lava lamp and a Bluetooth speaker.  I was pleasantly surprised by the size of it.  It is a full sized lava lamp with a Bluetooth speaker base.  The speaker quality is about what I would expect.  Not the greatest (no bass) but in combination with the lava lamp it really does make a cool product. I would recommend it to friends who like lava lamps with the added bonus of a Bluetooth speaker built in.