The fit is good, no wobble or creak. Included is next to the black matte frame a transparent dark brown and the Aux-extension and the USB adapter. Instructions are enclosed in English and Chinese, but is self-explanatory. Now have charged 3% to 100% in standby mode and active WLAN within about 2 hours, the 5s. Now are 2 LEDs are still on. So 25-50% of battery capacity still available. Assume that so again more than 50% charge in it.
Of course, the phone is bulky and heavy, but is ultimately no greater than, for example, the iPhone 6 and lift may also women there;) Is still good in the hand and is easy to operate.
Very good, I find that to charge the phone and the battery cover using the mini USB. Once infected to both charges together. The only complaint so far is that when the charging cable is connected, the ease of use greatly unfortunately, because the charger cable is plugged into the bottom right. But not tragic, to be loaded halt somewhere.
Will broaden my experience if there's again what to say.