The device was delivered to the hotel (in Osaka) on time as requested. Returning it by dropping off at a post box at Haneda Airport was easy.
The device battery was good and most of the time, it could last for a day. Couple of time, we needed to use it with a power bank.
Regarding the wifi performance, we didn't see any issue while using in Osaka. But, in Kyoto, we did see connection dropped in higher ground (like top floor of Kyoto Station) and Arashiyama area.
In Toyko, several drops were experienced at subway.
Ordered Item(s):Mobile Wifi High Speed Unlimited 10 days Rental (WiMAX)