Each grandstand section has fourteen rows of seating, and there is a fairly significant difference between rows 1 and 14. Sitting in Row 1 will have you stepping to the concourse in moments, while seating in the last row contains 28 seats and a walk down more than a dozen stairs. On the flip side, The higher the row number, the higher the likelihood you will be in the shade. During the hot summer months, this could come as a blessing.
For a truly good deal, try to aim for Rows 5 or 6. There are fewer than 20 seats in these rows, they are only a few steps from the concourse, and you have a fairly good chance of being in the shade as long as your seats are in foul territory (outfield seating, especially in RF, is in the sun).