In general, as if happy, but on a foursome. Disadvantages-long charged (did not try a powerful charging). There is no normal indicator-how much battery is charged. Used it twice, once enough for full charge of the iphone, the other time for some reason the whole charge went to half the charge of the iphone. So i can't really say. When charging, can heat up decently, causes concern. Adapter for iphone, perhaps not very high quality-it should be pulled out with a cable, once, secondly-sometimes the iphone buzzes permanently-as if it connects and turns off to charging and so for some time. Would i take again? No. Will i use-yes, until it is covered. In general, the quality is about four, and interestingly, surprised his light weight. Kind-a little cheap, i would prefer black plastic and red inserts. I'm sorry if i hurt anyone. I expected the best from him. And the dimensions are really compact.