225 provided a great view of almost the entire stadium. It seems like you can upgrade and sneak into better seats pretty easily and move around if you have to - a Friday night promo game was still only 2/3 full vs. the Marlins. The Presidents' Race is one of the coolest between inning events I've seen at a ballpark, really fun. And Teddy Roosevelt always loses.
The Nationals are good now, and seeing the home team being of high quality always makes the experience better but the ticket prices have also seen a decent jump, especially after moving up Bryce Harper from the minors.