I had purchased other types of SIM cards before where they would throttle your speed if you used too much data in one day, this SIM had no throttling at all, and I could use all my data in one day if I wanted to.

It seems like my sim was much cheaper (I spent about $25 on the sim and data) and faster than the pocket wifi; also I didn't have to worry about returning any hardware or charging anything to have date

The SIM is very easy to set up.

The sim did not work when we got to Japan

Not nearly as easy as a preloaded sim though I found the app helpful later on to see how much data I had left

The Zen Sim was really helpful during my stay in Japan

This SIM was very easy to set up using the companion app.

Great sim card, easy to use.

It seems like my sim was much cheaper (I spent about $25 on the sim and data) and faster than the pocket wifi; also I didn't have to worry about returning any hardware or charging anything to have date

This sim was very easy to use and very affordable

On the positive note, I did get a full refund on the plan as well as the SIM I bought, and I had no problem with my unlocked iPhone.

This SIM was a life saver and was extremely easy to use, set up and top up