The story about the plane that had to land in Miami scared the crap out of me. I just didn't want to bring their heavy carseats on the plane so this is a great alternative. I didn't even know that you could rent them until recently.
How does it work? I have two CARES Harnesses and have thought about renting them out. I just worry about getting them back and whatnot. Still, after the plane news, I'm that much happier to have them.
Re: I rented 2 cares harness for our trip to Disney.
from ebay
the seller was
cohibakd
it was pretty cheap too