I came here to rent a wireless device for my trip to Japan at the last minute when HIS was all sold out and told me I could try this place. This store appears to cater almost primarily to Japanese speakers, and the store staff has only limited English. Nevertheless, I rented a wifi device for 11 days for $57 dollars, which is comparable to the HIS 14 day price. You have 2 days after the rental ends to return the device.
While in Japan, the device worked well in Tokyo, Enoshima/Kamakura, Hakone, and Tokyo. In fact, in Enoshima and Hakone, I had service with this device when the device provided with my Airbnb did not work. No spare batteries are available for rent, but I found that this device lasted the whole day for me. While out and about, only my cellphone was connected, and usually I was more concerned about my cellphone battery lasting the whole day rather than this device (was using cellphone primarily for pictures and directions).
Overall, I was very satisfied with the device and definitely happy to have portable wireless during my trip. read more