BOG is one of those restaurants that is...interesting to us...it has become a tradition, but I personally wouldn't be upset if we skipped it, either.
We had a trip planned within a few months of when it first opened and were lucky enough to snag a reservation. We have probably had dinner there 4, maybe 5 times and lunch once when it was QS.
It's always been good, not great. I definitely think it was better before the prix fixe menu went into effect, though I also understand why Disney had to institute that policy even if I don't personally agree with it. But when you have people taking up reservations and they only order dessert to check it out, while people that would have paid for a multi-course meal are unable to get in...again, I don't personally agree with it but from a business perspective I do understand it.
We went in March of this year and again in November. The food is, as I said, good...not great, not bad, just good...though I would not say that it is worth what it costs. That said, DD3.5 loves the dessert and after our trip in March she talked at great length about going back so she could paint her teacup again. I think it is more nostalgic/experiential than fine dining.
One last note, when we went in March the service was just awful, which was a first for us. I am happy to report that it was much better in November when we went back, though.
If we skipped it next trip I would not be upset, but if we went I would also be perfectly fine too. It's just one of those things that I can enjoy but the logical part of me knows that the cost/value is really probably not there.