Pros: It's small, it's light, it accepts a variety of storage devices. It can charge a phone, and run a portable hard drive. And it's easy to configure and run.

Cons: None yet, though I'll be keeping an eye on its actual runtime (the manufacturer says 'up to five hours').

Other Thoughts: I have a Nexus 10 tablet and was looking for something that would allow me to expand its storage capacity. I was interested in the Seagate wireless hard drive, but the price put me off - besides, I already own a 1TB portable hard drive. All I really needed was portable wifi that would let me use my own storage devices. This fit the bill - and at a fraction of the cost of the Seagate drive. I've tried it with a tiny flash drive, an SD card, and my portable hard drive. It performs like a champ with them all. Mine arrived with a short but reasonably detailed user guide that included the password and clear directions. Install the MobileFun app on your device, turn this, find it on your device's list of networks, click the MobileFun app, and you're in business. It didn't take more than five minutes from turning it on to streaming my first movie. If you're looking for more storage for your portable device(s), give this a try. I'm looking forward to using this when I travel.