It was very good. When I had a problem to put back an original SIM, they answered by the e-mail immediately. Excellent support.
Also, there was a discount as I used this company before.

Better than pocket wifi IMO, you'll have the freedom to go wherever you want without the worry that the connection could fail. Good prices, too!

Very simple to install and always working also on the top of mountain asahidake in hokkaido. Would buy it again

Japan wireless is reliable and fast. Didn’t experience any problem connecting. :)

The sim worked perfectly for the whole stay in Japan.

It was perfect for my journey

It was awesome, reliable, and easy to install!

I had a minor issue initially as I tried to activate the SIM card during the network maintenance period. However, once that was resolved, it worked perfectly at the expected speed and for the entire planned duration. Great service overall!

Worked as expected, no flaws

Very good connectivity