Easy access from the Tomei at the Gotemba exit. You have to be careful about prices here- not everything is a bargain. Saying that, there are days we buy nothing, and days we find things we’ve looked for for months. You just gotta go, know what you want and then be lucky. You can sign up for a passport at the information center to receive extra discounts. You can see outlet-wide sale dates posted at their website here (in English and Japanese).
See the first google map for directions.