The Astros did a great job playing the elements in the upper deck at Minute Maid Park. Although many of the seats down the line are an incredible distance from home plate, they are well covered from the sun. Additionally, men's, women's and family restrooms are never too far away, which is unusual for upper deck seating.
Choose seats in the first couple of rows and you'll get a view similar to terrace level fans who paid much more. Avoid sections 430-438 if you want to see the scoreboard.