I've bought chips from a good deal of sites and I go back to Momschips because of how reliable are. Quick delivery, good prices, and staff that is pleasant and easy to deal with is a thumbs up from me.
I really enjoy the deals and cash back from this site. Whenever I'm waiting for something to go on sale it's usually Rakuten that ends up discounting the item first so I give them my business. The cash back is just icing on the cake.