Sinclair - Market Express is a locally operated gas station and convenience store known for its excellent, best hamburgers in the area, described as unhealthy and delicious road trippin' food. People are friendly and helpful, and the store is clean. Reviews highlight reasonable prices on snacks and a welcoming atmosphere. However, some note ridiculous prices on other items and mention concerns about random charges on cards and gas quality. During busy times, food preparation can take a while, but the food is often considered worth the wait, performed by a flawless working team.