I've used it twice, once my friend booked and the second time I booked. Both times were in Philly for engagement/wedding festivities. The first time I wasn't a fan of the place, but I think that comes down to more of my friend not being as picky as I am. The second time was great. There was a little Mickey friend living there, but that's cities for ya.
I'd use it again, but now I know to make sure that nothing wonky will happen in the city I go to!
As far as I'm concerned, if the place is owned by the person renting it, then they should be allowed to use their property as they see fit. But what do I know? (edit to clarify that maybe 'as they see fit' has some exclusions.)