I had a great time in this studio and it felt extremely safe. It is located in the heart of the historic centre, literally a few steps away from the cathedral (which you also get to see the tip of from the windows if you position the table right!) and other major landmarks. It's off a very central street so you can pick whether to get lost in Palermo and enjoy the lovely tiny streets and/or stick to the more touristic roads. A major bonus for me was the safety feel of the place. I was travelling on my own and felt very safe because of the type of entrance door, the fact that you're upstairs and that there are 3 doors between ur studio and the road outside.
I found the place to be quite clean overall (not sparkly clean as it did need a wipe here and there but generally clean). Minor setbacks: the shower does seem to leak water a bit on the floor so I always had to mop it out a bit after showering but I'm sure that's something Giovanni can fix easily. Also, the plugs situation isn't great but I moved the table to the side of the bed so that I could plug my chargers directly from the wall as the extension cord Giovanni provided made them overheat a bit; that worked out just fine in the end.
There are a few really well-thought out touches that just make you feel even more comfortable. For example the tv for you to watch it from the bed. It is set at a perfect angle just in front of the bed so that when you're lying in bed you don't strain your neck but watch it very cozily. WiFi was really strong. The kitchen was really well stocked and although there was a tiny bit of olive oil (just enough to fry an egg a day I'd say, if you plan on cooking heavily you're probably going to have to buy it) but for a short stay there was the right amount of everything (salt, sugar, pepper, coffee...there was even soy sauce!)
I was meant to stay a week but liked the place so much that I extended a few days more. It's the perfect base to go explore Palermo's historic landmarks, the harbour is just a 10-15 minutes walk away and you can easily walk to all the historic markets to grab some amazing street food.
p.s. I would suggest getting recycling bins as I didn't have anywhere to put the separate recycling so I used plastic bags but not everyone might do this.
Overall, great stay! Thank you Giovanni! I'll be back once I come back to Palermo!