You have to make a profile to make a reservation but they will need to verify your Drivers license and a couple other pieces of information even just to see the final pricing. Most of the time the reservations are refundable, you just have to check but it will charge your card when you do the booking. Like an Airbnb it can be a gamble in terms of it coming up. Let's just give an example for me, our reservation got cancelled because the owner ended up leaving town so we had to book another one. There are also a lot of fees that can add up but can still be high savings. I still have my Costco booked just in case because you can cancel that within 24 hours or so without penalty.