KKday User
1) Be sure to check with rival travel agencies. When I checked, KKday sold the JR pass for Y600 cheaper than Klook.
2) Convenient. I received the voucher via email, then when I arrived in Japan, I exchanged it for the JR pass in the JR East office. Be sure to check that you exchanged the correct pass as in our case, they initially gave us the JR East Tohoku Pass.
3) Then you can travel to your heart's content! Nikko, Niigata, Nagano are all beautiful places!
I would recommend this to all those who plan to take the off beaten path of Nagano and Niigata.