I bought this product in May, when it first came out. It worked fine for about three months. I wore it 24/7, recorded my sleep and meals. It suddenly stopped working properly during the last firmware update. The wristband no long vibrates upon reaching a goal or an alarm; it will not sync to my Mac or my iPhone. I only get an error message saying the battery is low, but it is fully charged. Very disappointing.

Added this to my vegetable garden when plants started to yellow and weren't doing much of anything. Within just a few days they had perked back up, were vibrant green and growing well again. Very impressed!

I do not know if it is a good speaker or not. I can not get it to pair with my PC and when I asked by email to verify how to pair with my PC via bluetooth, I did not receive a helpful response. So far, I can use the speaker as intended. Could be a great speaker, I did not know!