I have gone to this operation many time in the past 26 years that I have lived in Waukesha but over the past year it seems that the knowledge of product and the service has been lifted. I enjoy going in there and asking questions about what's hot in spirits. I own a restaurant in a town called Mukwonago a few miles away from Sentry Liquor. The owner of Sentry Liquor, Peter is always willing to help me stay ahead of other operations in the area. I have been in the restaurant business for forty years so I think I have a real understanding what the word service means.