The Tesla Supercharger location at Building 3939, I-35 Street, San Marcos City, is a convenient spot for electric vehicle owners to charge their cars. The business operates 24/7, making it a great option for those who need to charge their vehicles at any time. The facility is clean and well-maintained, with a wide range of services available, including onsite services. However, some users have reported issues with the charging stations, including multiple chargers being out of order. This can lead to frustrating waits for those who need to charge their vehicles. Despite this, the location is generally well-received by customers, who appreciate the convenience and reliability of the Supercharger network.