NEC proadlizer decoupling devices?

I have a space-constrained PCB and I was considering these new NEC decoupling devices. They show some testing with Stratix FPGAs on a board. If anyone has any knowledge about these (good or bad), we may all benefit from hearing so...:D

http://www.nec-tokin.com/english/product/cap/proadlizer/outline1.html (http://www.nec-tokin.com/english/product/cap/proadlizer/outline1.html)