We've had lunch and dinner at BOG and enjoyed both.
Lunch is CS so no reservations, but you'll have to line up on the bridge. After ordering at the kiosk you can choose a table in any of the rooms. Your food will be brought to you, although you'll have to get your own silverware. The food was very good.
Dinner is TS and requires a reservation. I would recommend making the reservation as soon as your 180 day arrives since it is the hardest reservation to get at this time. If you're staying at a Disney owned resort definitely take advantage of the 180 + 10 for reservations.
The dinner menu is very different from the lunch one, but also very good.
You'll be able to walk around the restaurant and see all of the rooms at both lunch and dinner. However, there is a photo op with the Beast after dinner, but not at lunchtime.