Can someone tell me if you are allowed to use the two free nights together on one stay with opening a Hyatt credit card? I cannot tell from their fine print if that is allowed. Also if both my husband and I open a card and meet the requirements for the free nights could we use four nights on one reservation? We are planning on staying 6 or 7nts

What other benefits do you get from having the card other than earning points. We have a Hyatt Gold passport account

Thank you