From section 115 you will be very close to the stage while also being far enough back to enjoy views of the entire stage. Other sections that are too close to the side of the stage can have a difficult view from an extreme side angle (ex: 116-117, and 103-104), but your viewing angles from 115 will allow you to see everything. There are a total of 17 rows of seating in Section 115, so you will be in the upper portion in Row 12 which will benefit your sight lines and allow you to see more as the stage will be just below your eye line. As you face the floor from section 115, seat 1 will be on the aisle to the right, while seat 20 is on the aisle to the left, so you will be closer to the left edge of the section (enter through the tunnel between sections 115 and 116).
Overall, the views from Section 115 will be some of the best in the house, and seats here are among our favorite options for a concert.