We ate lunch there on the Tuesday before Thanksgiving, a very busy day at AK. Our PS was at 12pm and we seated 5 minutes after we checked in. I heard them telling people w/out a PS that the wait would be 45 minutes long. If you're going during a busy time, you definately need a PS. By the way, its a little hard to find the entrance to Raintree from the park (or maybe I'm just very directionally impaired), so give yourself a little extra time to find your way.