Sitting in the business lounge at ULN right now. The airside lounge accepts *G flying in Y on CA. They have snacks, wifi, and a full bar.
Arrival from FRU was absolutely simple. I needed to get my onward BP so I just cleared immigration and went to the Air China counters. Americans don't need a visa so I'm not sure of the airside transit procedure, but if you're visa-free, just clear immigration. It takes less than one minute.
Outside of the airport affords nice views of landing and departing traffic and the surrounding hills. There is excellent free wifi coverage everywhere.
Staff are very friendly. A pleasant transfer.