Alfonsa's place was a lovely base to explore Palermo from for the week. The apartment is spacious and cool thanks to the air conditioning and decorated nicely. The kitchen area is small but has everything you need to cook simple meals with (though there isn't an oven) and we enjoyed being able to do so on a few occasions. There was also lots of bottled water in the cupboard (hopefully!) for us to use, which was really appreciated. Although we had a few small issues with the cleanliness of the kitchen, the rest of the apartment was clean and there were cleaning supplies we could use to clean up a little.
The apartment is located in a really nice area, down quite a quiet street but only a couple of minutes' walk from the main road that takes you all the way into the old town (it does take around 35-40 mins to get there but it's a nice walk). It seems to be quite an upscale area as there were many designer shops nearby. The airport shuttle bus stops a 5-minute walk away and other bus stops are nearby, although I wouldn't recommend taking the bus to Mondello if you can help it as it was horribly packed and delayed both ways.
Alfonsa was a great host, sending detailed instructions on how to get to the apartment from the airport and we had no issues using the lock box and getting into the apartment. She was very quick to respond to messages and was happy to allow us a late check-out so we didn't have to carry our luggage around with us all day, which we really appreciated! We'd definitely recommend her place to anyone looking for a nice apartment to explore Palermo from for a short time.
One note I'd like to make is that it wasn't clear how to dispose of any rubbish we had. There was a small bin in the kitchen, which we quickly filled up and we didn't know what to do with the bin bag after this. We also weren't sure what we should do with recycling as there seemed to be an emphasis on this in Palermo but no clear system or instructions for the building. We did find some bins outside for our general waste but ended up leaving some plastic bottles in the apartment as we weren't sure what to do with them.