Originally Posted by kenbo

If your stays at Santa Clara are booked on the weekends (Fri-Sun) then the lounge is closed. It's accessible for drinks and snacks but there are no breakfast and evening food options. As a Diamond member, you will get free full breakfast in the restaurant to compensate AND you'll receive 2500 bonus points.

I believe HR Irvine is the same way, although I've never stayed there. Keep in mind that properties without a lounge will give you free full breakfast but no bonus points.