Good WiFi, but needs to be recharged by afternoon
The range, speed and quality was great. The only downside I had was that it needed to be recharged by mid afternoon. Normally, as long as you are paying attention, that's fine because they also provide you with a portable charger. Unfortunately, the charger they sent did not work well, so I use my own pocket juice to charge the WiFi, which turned out fine. The other important thing to note is that you need to take the WiFi cord with you so you can charge it on the go. It has a unique plug into the WiFi device and your normal USB cable won't work.
But, if I return to Japan, I would definitely get another one from this company. It was where it was supposed to be (Narita Terminal 1 Post Office) and it was easy to return (same post office). And I had all the data I needed with the Diamond package.
14 November 2018