Was at Kirkwood during the Saturday of the President's weekend. It was a blast. The slopes were in decent shape, and due the size of the place, there were rooms plenty for the most part. I skied for the first time in a half pipe there. Plenty of slope-side parking and seating in the lodge. Some of the lifts were slow like others have mentioned.
I can imagine during weekdays how pristine the mountain can be. The only gripe is about the rental shop, they could use some more help there. Oh, they should extend the operation of the east facing slopes until 5:30 or sundown. Closing at 4 with plenty of sunshine still on that side is a waste.