Grin's has a great atmosphere. You can dine either inside or on the patio outside. The restaurant sits on a hill, so the wooden porch outside overlooks part of San Marcos. It's really nice to sit outside during the evening or at night. I have never had a bad meal at Grin's, and there is a large assortment of food on the menu. Monday through Thursdays they have $1.50 margaritas at night. You can also purchase a bucket of Coronitas for $5.00 on these evenings. $3 off any entrée coupons are available at www.college-coupons.com. A private room is also available to rent out for special occasions or meetings.