Spend wisely on spending
You just can't go wrong here. It's easy to use, it doesn't matter where you are, and you're now free to buy anything you like from the Japanese PSN. From games to add-ons to apartments & clothes in Home, it will all be open to you. If you use the Japanese PSN or Home, this card is a MUST!

The 5000 Yen PSN card is a must buy for the import gamers who frequent the Japanese PSN store.
These cards make it unbelievably easy to make purchases off of the Japanese PSN Network. The 5000 yen card was a very sweet deal, allowing me to purchase several Japanese PS3 and PSP games without hassle or frustration. This is essential for PS3 and PSP owners who love playing classic Japanese PS One games and digital only games like Rockman 9 and Marvel Vs Capcom 2.

Useful
I love it, very useful especially when you're not in Japan but want to buy contents on Jap PSN~!

200 HKD PSN Card
Worked without a hitch on my US PS3. Great for grabbing some Japanese PS1/PSN/PSP games.

Easiest way to buy contents off Japanese PSN
If you ever need to buy those classic shooting games or other contents from Japanese PSN which only accepts Japanese credit card, look no further. Just get this card, key in the codes and voila, you're good to go!