A well-designed device.
I have only tested it at home so far, but it has charged my ipad effectively.
I think the design is effective. e.g.-
The ports are all at one end, quite convenient, all labelled. Two inputs, alternative fittings, for charging, allow the use of most cables in common use. Outputs via two USB outputs offer equal flexibility.
Indicator lights show the amount of charge remaining. The switch has a positive click.
A tight-fitting fabric-netting 'case' will afford some protection, but I suspect not much protection if the power-bank was dropped! However, the netting does prevent it from sliding around, or out of the hand!. A useful point is that the ports are still accessible with the case in place, so there's no possibility of losing it. A cable can be carried in the netting pocket, a further convenience.
Verified purchase: YesCondition: New