Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Great Value & Great Product

I love these vitamins because they are small and provide the maximum dose of vitamin D I need! I was told by my doctor to increase the amount of vitamin D I was taking. I started taking these and my vitamin level had increase within thirty days! The value is good,and the shipping isn't bad either. You can also order a larger size which is better.