In this task, you're given a review from Amazon's food products. Your task is to generate a rating for the product on a scale of 1-5 based on the review. The rating means 1: extremely poor, 2: poor, 3: neutral or mixed, 4: good, 5: extremely good.

Let me give you an example: I have bought several of the Vitality canned dog food products and have found them all to be of good quality. The product looks more like a stew than a processed meat and it smells better. My Labrador is finicky and she appreciates this product better than most.
The answer to this example can be: 5
Here is why: The user really seem very satisfied with the product and gave good review worthy of 5 stars rating.

OK. solve this:
I do love PopChips. They work well with weight watchers, taste great and the crunch can't be beat. This pack has many flavors, with the salt and vinegar being my favorite, my husband loves the salt and pepper and my kids like original and cheddar. The one I miss is Sweet Potato. It is by far my favorite of the whole lot of flavors, but aren't included in this variety pack.
Answer:
4