My husband and I stayed at Eliza's for 5 nights in May 2019. It was spacious, clean and convenient, especially to the train station (only a 5-minute walk). It's about 15 minutes to the center of Florence, so would recommend having a backpack with you because you won't want to go back during the day if you are doing many of the tourist sites.
There is a small market at the end of the street and the restaurant right next door is delicious. The apartment had many appreciated extras, like cotton balls in the bathroom, umbrellas and bottles of water. She also had a stocked spice cabinet and everything needed to run a home (ie: dish soap, hand soap, toilet paper, paper towel, trash bags, etc.) We also appreciated the USB outlets and the smart TVs/wifi (do plan to bring a converter though if coming from the States). We were able to enjoy our Amazon Prime account from her tvs.
The only negative was that the beds were not very comfortable. My husband and I both had trouble sleeping on the very firm mattress and low quality, flat bed pillows. Honestly, the poor beds were the only reason we didn't give this listing 5-stars. Everything else was wonderful. We loved our time in Florence!