1. Small Size - makes it portable, easy to put in a carry-on, and will not block any other adjoining outlets
2. High power USB ports
3. Charges devices quickly
1. It is 110 V, so it might not work for international use if you are using 220 V outlets
PRICE: $19.77 w/ Amazon Prime
(price has changed since the release of the article)
The linked article claims the Accell power strip is the best travel power strip, but I have not personally used it to back up their claim. Still, it is a notable one that you might want to check out and use in the US.