This is an amazing modern home and Joshua is indeed a super host. Communication with him was easy and very timely. He gave us a warm welcome and tour of the house. He had several recommendations for nearby grocery stores, transportation options and eating places (Trattoria Zsa Zsa was great). Joshua was available to us if we needed any assistance during our stay.
The house was perfect for our two families (group of 8). Spacious, super clean and modern decor across the whole house. As other guest reviews mentioned, this home has four levels and so lots of steps to climb up/down. Four good size bedrooms with four bathrooms (one attached and others shared) - very comfy beds, clean bathrooms, high quality towels and basic essentials like body wash, shampoo and conditioner. There is also a washer and dryer on the top most floor and that was very helpful. We did not have time to enjoy the hot tub but there is one in the backyard available to the guests.
The home is not too far from the center of the city (15- 20 mins walk), and there is a tram line just 2-3 mins away from the home...convenient to get to/from the Santa Maria Novella station (2 stops away and cost only 1.50 Euro). I would strongly recommend taking the tram to the house if you have luggage (we regretted not doing this on our way in).
Overall, a luxurious home indeed at a great value, proximity and a super host. We certainly will look to stay here when we return to Florence to explore more of Tuscany. We highly recommend this home to others.