I have used quite a few other power banks in the past but none of them have been like this one. This particular power bank is different because you can plug in two devices at once (if you have an additional USB cord-not included) and also have the power bank plugged into an outlet at the same time.
It charges my phone and son's tablet really quickly without getting really hot. It works great. If it needs to be charged, you can use the USB cord and either charge it with your computer or with a USB wall adapter that you can purchase practically anywhere.
Another thing that I like is the fact that it shows you the percentage of battery power that it has left in the bank, so you know when you have to charge it again. None of my other power banks have a mini screen that tells me this.
The size of the power bank is nice and small, and not very heavy, so it fits nicely in a pocket, purse, backpack, gym bag, etc. Great for when you need to take it on the go. I like the nice dark blue color as well.
Disclaimer: I received a NOVA power bank in exchange for an honest review. All of the opinions stated here are based solely off of my personal experience with the product. No other compensation was received.