I subscribed and was approved for access to two properties.
This was awkward, they have a calendar for you to use but no information about when to apply. I got a couple of not nice replies about we're not accepting applications yet. Well, put a note on there for when you are!
On the day, when I used their directions it took me to the properties business mailing address, which of course was in the closest town. Nowhere near the actual property (Luckily I knew where to go.)
You're supposed to scan a sign to check in. Never saw one.
Overall, good idea, terrible execution.