Someone recently posted a form site they use for gathering guest info like arrival time, flight info, guest info, etc. I want to find this post again, and now it’s nowhere to be found…does this sound familiar to anyone?
I checked the site you mentioned but could not find either. Since 4 weeks, I’m using very similar service, which is provided by an App (Your Porter App [yourporter.com]). It sends a customised email to your guests with a form link where they can submit their arrival information and it appears directly on your smartphone.
It even tracks the flight status and let you know in case there is a delay etc.
Just take a look, it might be useful in your case.