Not to be a contrarian, but no,no,no,no...not Liberty Tree Inn. Seriously, it's not really in the top four eateries in MK.
Crystal Palace is the best value, particularly if you have teens or a very hungry crew. They put out so much food to choose from that it's almost ridiculous. And everything is tasty. Also great dessert bar included in the price. The setting is serene and beautiful. This is the place we always go to and ranks as one of my faves in all of WDW. Location-wise, you'll find Crystal Palace at the hub of Mainstreet right next to the entrance to Adventureland.
Cinderella's Royal Table is also very nice, but it is a tiny dining room. Staff is kind of fun, playing royal servants. We've only done breakfast there, so I can't really say much about lunch or dinner other than I've been told that it's good.
To continue on opinion, I think Tony's and even Harbor House and Cosmic Rays (both counter service) are better than Liberty Tree Inn. But again it's just my opinion. I'm not much on Stouffers and that's what Liberty Tree serves.
I, too, also echo the sentiment on Ohana's. Worth the monorail ride and it still gives you a nice pretty view of MK, particularly the castle. Food is also family-style and is much much better here than at Liberty Tree.