Yes they are I have ordered from them in the past not an import though. I also had a friend order JP MSP for a gamer pic on his JP account and he got it in the mail and it did work.
I have to import pretty much everything videogame related. I bought from that site a few times. I always used the basic shipping (no tracking) and always received my items. It takes some time to arrive, tho. They ship from Hong Kong and I'm located in Argentina, so...