The Feast Buffet at GVR is always clean and inviting. Service is acceptable and at lunch you can get a fresh rubin or grilled ham & cheese at the teppan station. The selection is decent and they have spamoni for desert. If you like deals get a players club card and you can eat breakfast for $5.
That said, sometimes the line seems to take forever to move. If you do a teppanyaki they only use ground meat (not good.) I am yet to see a crab leg at the place. They also kick you out between meals. We met for a business lunch and just hung around the table reviewing paperwork (not even drinking soft drinks.) The place was mostly deserted and they came over and told us we had to leave in 5 min. Ok, not eating, not drinking, not preventing anyone else from having a table. We left. I guess they were worried we would pay for lunch and get dinner....gasp! wait, no crab legs, yeah we were not waiting for dinner service.
For the price it is just okay, we usually just go over to Sunset Station or the Rio.