Most:
+ Beautiful construction, solid and lasting aspect, and rather aesthetic.
+ Reasonable weight and volume
+ Two outlets to plug two devices simultaneously and comes with two cables
+ Makes emergency flashlight office too, which can be very useful
Cons:
- One of the two cables supplied only 20 cm (the other 70 cm) is a bit short!
- Me the announced capacity seems a bit overestimated: almost 2 full recharges a Galaxy Note 2 (3100 mAh battery) enough to put flat (it should stay still over 2,000 mAh!?)
- Self-discharge is important (this probably explains the above point)
- The various connectors tend to disconnect easily ...
- No charger
But finally, it is a very useful accessory, even if I expected better.
