The apartments are small but comfortable, at good walking distance from the main street of Firostefani. A plus was the great view from the room onto the other coast of the island, although the balcony is quite high so the view is great only when standing (we were on the first floor).
The transfer to the port is definitely worth it (specially if you have luggage) as you'll need two buses (and the driver to actually stop where you requested) to get to Firostefani.
Overall excellent value, just note that this is more of an apart-hotel than an airbnb experience.