Comes in a nice packaging, battery has a velcro secured carry bag. Has a nice cold touch, definitely metal alloy, doesn't warm up during charge / discharge. Overall it has a nice build quality. Has screws, so it is possible to change the lithium battery, if it wears out. Factory warranty is 6 months, for that price it is a little few. Doesn't support pass-through charging, so you can not charge your devices while you charge the power bank. However it has all kind of ordinary protection: short-circuit,
overcharge, over discharge, etc... Doesn't display the remaining capacity during charging, and this is sadly unusal... You have to press the button, but it disrupts the charging process a little. Has 1 dedicated IOS device port (1A max maybe, I don't own IOS devices), and one generic port (2.1 A max). I don't get the adaptive charging part, neither I don't understand why do I have to activate it manually. Speaking of capacity, and efficiency: 30 Wh is written to the power bank. Requires 33.85 Wh to fully charge, so chargin efficiency (when you charge the power bank) is 88%. You can discharge 23.81 Wh from the power bank, so discharge efficiency (when you charge your devices with the power bank) is 79%. Overall: little pricy, you pay for the design, otherwise usual power bank.