The Yarnery is a great store because of its vast selection. There are floor to ceiling cubbies filled with unusual, hard to find, and sometimes downright expensive yarns. There are samples for virtually every yarn they carry. This is the place to go for your 100% silk or hand-dyed yarn.
The staff at the Yarnery is a bit underwhelming, though. They didn't ask me if I needed help until I was in the store for almost 10 minutes. In such a small store, it is hard to notice a person enter!