Bleacher seating is on actual metal bleachers in CF. While not the most comfortable of seats, these are among the least expensive seats in the exclusive 100 level. Sections closest to the CF Fan Deck (100,101,163,164) will have a difficult time seeing all the action in the OF because of the Fan Deck and CF fence.
You can see the infield very well from there. They are good seats for a good value. Only problem is if you are close to centerfield, you have obstructed views of the scoreboard sometimes.