I was very disappointed with this vendor. I like the idea of having a mobile WiFi hotspot. Please be aware they say the charge SHOULD hold 9 hours of charge well....mine did not, I was lucky if it hold 7-8 hours and even with and 7-8 hour charge the battery would only charge 90 it say 3 hours to fully charge, so most of the days we had to make sure to be ready to be without service. OR be sure to carry a backup battery. I would not recommend this vendor but highly recommend getting the WiFi hot spot to save on your cell bill.
Excellent deal for WiFi in Japan. WiFi was very fast, battery lasted nearly all day. If you want to ensure you have battery on wifi the whole day bring a battery back up with you. Was easy to pick up and drop off even when arriving and leaving at different airports.
This portable Wifi was a lifesaver! So convenient, especially when we were navigating in Japan. We picked up and returned at Osaka airport without any problems or lineup. The only thing is that it might be a bit more expensive than other portable units. However, the reception was better!