It’s been a month now and I’m very satisfied with this speaker. It has great bass, great battery life and is very convenient to have nearby specially when your phone needs a charger.
I bought this for my old truck instead of purchasing a new Bluetooth stereo. I was going to connect it with the flip 3 that I already have, but the firmware is not compatible and there is no update to make it compatible ever. The Charge sounds good for it's size. The bass output is too light though. The highs are too high for the amount of bass that it can produce. I am going to purchase the boom box and place that on the floor in the back of the truck with the Charge mounted on the dash. Just a point of reference, if you mount on the dash, use Velcro because the Charge will overheat in the sun and not be able to play. Anyway the Charge 4 and Boom box should produce a nice surround sound in the cabin of my truck. We'll see.
I bought this a couple of weeks ago and have been using it non-stop since. A few of my friends had different styles of JBL - so glad I joined in on it!