Sierra Auto Center is a well-regarded automotive shop known for its efficient service and honest pricing. Customers appreciate the quick turnaround on repairs, with many highlighting their positive experiences with tire repairs and other vehicle maintenance. One customer praised the shop for fixing a flat tire in just five minutes at a reasonable cost. The center is also noted for its clean facilities, including a bathroom, and features a mini market offering take-away food, such as empanadas and pastries, which are popular among visitors. The prices for coffee and food are considered reasonable, making it a great spot for a quick breakfast. Sierra Auto Center is described as a hidden gem, where friendly staff provide great hospitality, making it a favored choice in the Miami Beach area for both automotive needs and convenient snacks.