We ate breakfast a few times before they raised the price way too high. If they had only enforced the prix fixe at the lower price they wouldn't have needed to raise it.
We did the dinner once, very disappointed. It was literally no different than lunch other than we told a server what we wanted vs pre-ordering or using the kiosks.
We ate lunch there every trip. The food was better than the rest of the quick serve in MK, the heavier meals could be used as our dinner. We enjoyed the atmosphere (not the Rose Gallery) that was part of the movie and it was a nice way to have a leisurely lunch. Sad it didn't return but I get it. As long as they can fill it with prix fixe they will.
We also ate lunch at BOG back in 2019 under the old menu. Wasn't impressed and thought the food was very average. You stand in a stuffy hallwall waiting your turn to order at a computer screen kiosk. The Disney people seemed annoyed everyone was taking so long to order but for most it was probably their first time looking at a multi-page menu. Likely if you work there you have the menus memorized but surprised me they seemed so annoyed with peole taking time trying to find things on the menu. You then help yourself to beverages/silverware and find you own seating. They bring you your food when it is ready. Apparently some of that has changed with that pricey fixed menu Disney now uses at several park restaurants.
I will admit to being a guest that was very annoyed by the guests who stood there forever placing their order. There was no excuse for it. Not only could they have looked at the menu in advance or on their phone in line BUT the hallway (that was full of cool knights and decor, knights who were enchanted, not just standing there) but there were menus placed every so many feet on digital podiums for guests to study before they got to the kiosk. And if a guest was not tech savvy, not comfortable with kiosk, they could just ask for the CM at the register just like any other QS.
The hall where you eat was nothing special and seemed like it was time for a cleaning. Some clearly seem to think more highly of it then any of us did.
While I don't appreciate the Rose Gallery because it's not in the movie, it is still a pretty room. The Ballroom (hall) is stunning with so many details, beautifully painted ceiling and even falling snow outside the windows. The West Wing is quite impressive. The restaurant is far above in decor than other QS - which is maybe why is is TS only now.