Carmen was very friendly and flexible regarding the check-in/out. The mansion is very easy to find but it's difficult to park if you drive there, so be warn, the streets are very narrow.
The place is big and you'll find enough privacy as well as bright common place were people could gather. Regarding the pictures, it's a little more dusty than it seems and you could feel like living in a dollhouse. Felanitx is lovely village by itself, you'll find good and typical tapas bar there, the Sunday market is also interesting (for sure the food part).
During the stay you have access to the kitchen as you wish, my girlfriend and I only eat there for breakfast though.