Extra Space Storage on 525 W 20th St in National City, CA offers a large selection of storage units with drive-up access, electronic gate access, and exceptional security. The facility features a manager living on site, covered drive aisles, and multiple entrance gates. Units are spacious and sufficient for customer needs, with non climate controlled options available. The staff provides outstanding, excellent, and helpful customer service, making the process quick, efficient, and hassle-free. Customers report a great and easy experience, finding the right unit within 30 minutes. The team is knowledgeable, patient, and kind, ensuring customers feel valued and welcomed. While some note concerns about the location and building, the stellar professionalism and commitment to service are consistently highlighted. The facility also offers a military discount and convenient freeway access.