This thing is a must if you travel. It has the 1.5amps that the PSVita needs to charge. I recently traveled to NY, USA and took my PSP car adapter with me thinking "it has USB, it will work" I was wrong, it did not work at all, not enough power. This PSVita car adapter has good solid construction and does not feel cheap.
CONS: you cannot use any other USB device with this unless you somehow force the plug into it. It has the slot configuration so the PSVita's USB cable plug is the only cable that will fit. If you look closely at your USB plug, it has a slot at the top and bottom, making it a unique fit.
I say to anyone with a PSVita, BUY THIS!