Tried to access this lounge at 1220 today (Sat). Looked in the C side and looked like about 60% of the seats taken, certainly not what I would consider "crowded". Showed agent my 1K card and FC boarding pass for SFO-SEA. Was flat out denied entry. She was rather difficult to understand, but the gist of her remarks was that it was "very busy". If so, guess it's "very busy" every day.
As I left, I remarked that either it is a *A lounge....or it isn't.