Extra Space Storage on 5700 N Classen Blvd in Oklahoma City, OK, offers a wide selection of storage units with features such as drive-up access, climate control, and electronic gate entry. The facility is known for its cleanliness, security, and ADA compliance, making it a reliable choice for storing belongings. Customers praise the friendly and helpful staff, especially the store manager, who provides excellent customer service and assists them in finding the right unit. While there have been minor issues, such as gate access, the overall experience is positive, with many recommending the location for its professionalism and convenience.