We stayed with Sebastian for 1 week in June.
The apartments are located in a very nice neighbourhood next to the cathedral, so you can reach everything within Palma by foot.
The house itself is very unique and definitely worth a stay. There is a kitchen you can use as well as a terrace on the roof which is very nice. The whole interior is very tasteful and full of art.
Sebastian is the nicest host - he told us everything about the place and about a few spots to visit around Palma.
We will definitely be back soon!