We have done business with Zep Manufacturing over 20 years and have found that this company believes in customer service to the utmost. We always get our order promptly, our order is right. The product that we use the most of is AWESOME and we would not trade it for the world. We order this product and use it in all our accounts. We have tried other things which never take the place of Zep 40 for cleaning all surfaces and windows. Michelle Ballinger Ballinger Cleaning Service, Inc., Glenwood Springs, CO 81601