Villa Perla is a lovely house, it is really amazing to be in such an old villa. The furniture in the living room just gives that extra touch. The views are amazing too, both from the house and from the pool area.
The kitchen has a dishwashing machine, microwave, oven, gas hob with 4 burners. The bedroom at the very top (accessed by a spiral staircase) was a bit warm when we were there in end of August (but had lovely views), the two bedrooms on the middle floor were cooler (the room we were in on the middle floor even has it's own door out, and opens out to a little patio). We had a lot of mosquitoes when the sun started going down, so sitting by the pool in the evening required a generous dose of mosquito repellent (the windows have mosquito nets, that does help, but I'd say it is a good idea to bring a net for your bed if you want to leave the windows open at night).
Since the house is laid out on 3 floors it may be worth mentioning that anyone with difficulty walking up and down stairs might have trouble, but for us it was just a nice feature as we really felt like we had a floor each (we were sharing with our two friends). The fact that the house had four bathrooms, all with showers, was a really great feature.
The pool (accessed directly from the back door) was lovely, and the spacious shaded area really lovely to sit and relax/read a book/eat under. It was really clean and wasn't that heavily chlorinated which is good for people with sensitive skin. The pool area was also really well-equipped with lots of chairs and sun beds. And pool towels are included (along with sheets and bathroom towels).
Lucca is a wonderful little city, and I really recommend following Francesca's and Francesco's tip about visiting the restaurant "Ristorante Buca di Sant'Antonio" for some tasty Luccanese food. The staff were really friendly and helpful/service-minded, and even could cater to the needs of our vegetarian friends.
Our friends who arrived in Pisa before us had trouble with their mobile reception from their UK mobiles, and Francesco had to wait for a long time, but it thankfully all sorted itself out in the end and they managed to receive the house keys from him. Our Swedish mobiles had good mobile reception and I was able to communicate well with Francesca and Francesco through the Airbnb chat throughout our stay (I had their mobile numbers too just in case, but it was never needed).
I would say it is compulsory to have a car, especially if you want to do some sightseeing to Lucca and other neighbouring towns.
Our group of 4 people (two couples) really enjoyed our stay, thank you Francesca and Francesco!