I have been using Puritan's Pride for a while now, and love them. Always receive great prices, great shipping, and great products.
My mother and I have ordered from Puritan's Pride for years and have been very satisfied with the price and quality of everything ordered. Shipping is always fast. Their Neuro-PS product is my mother's favorite. She claims it has saved her memory.
I like that many of the products are vegan or without additives.