I wish my guests could see my availability at a glance. Exactly like the calendar that pops up in Uplisting's booking portal when they start selecting the dates - only imbedded in our websites for immediate viewing rather than the current necessary clicking.
For us to implement this I believe it needs its own URL rather than it being a pop-up calendar.
Attached is a mobile phone screenshot of how the 'Wix Hotels' calendar looks, which I am currently having to use despite massive connectivity problems.