Had a horrible experience with Vacasa that would lead me to never book with them again. I used a third party site to book the room and all the hoops they make you jump through after the booking is complete wasn't disclosed in the listing. After talking to Vacasa, I'm confident they do this intentionally to not discourage you from booking.
Tried to cancel both with the hotel directly and the third party site and got no where. I highly advise against you using this service unless you have time to fool around with them. This alone has made the experience unpleasant for me.