Love sitting on the home run porch. There are two levels of the porch, the level of seats below these are also considered the home run porch. And on the first level even further down is the left field bleachers.
I love the outfield seating and being able to see the freshly cut grass. The line of sight is almost dead center field.
Our seats were comfortable. I hated the green tint to the seats though. I would love to see some navy blue mixed with red to give the true 'Twins Feel'.

There are practically no concessions outside of these seats, you have to venture down to the next level below. 'Hennepin Grille' is a good one, they serve cheese curds (Google it) and Garlic Fries. Bring lots of cash though if you're bringing a family. Target Field's concessions are just as expensive as the next ballpark's.
If you have seats in row 1 in section 334, you'll be able to look down into both team's bullpens down below in left center field. It's an odd placement having them both side to side but it saves a lot of space in the outfield, I think.