I stayed here for 28 nights and as a solo female traveler, I felt very safe! The area is well-lit, there are plenty of people around, fairly touristy spot but so close to all the great restaurants in Trastevere. I never met the host and checked myself in with a lockbox.
For the most part it was equipped for a longer stay and I was able to do my remote job. There were a few wifi issues but Davide was very responsive and would work on fixing the router very quickly. Not a lot of natural light and gets pretty hot in the summer, but very nice big windows that let air in at night (and curtains that can kind of act as screens) although the streets are VERY noisy with people at all hours of the night. Having earplugs was a lifesaver.
It's a very old building but this apartment has so much charm, and the decorations are so cute and homey. A lot of household things were not provided like toilet paper, paper towels, trash bags, laundry soap, dish soap, etc which was a little disappointing. Wouldn't have expected enough for my whole stay, but something to get someone started would be nice so you don't have to go buy everything you need at the store - especially if you're only staying a few days. Overall, I had a really good experience here!!