Really good apartment, I'm glad I chose this option.
I was afraid that it'll be cold, as we came in January and I saw reviews mentioning low temperature, but it was equipped with two radiators and an AC, and we only had to turn on radiators overnight on a minimal setting and never turned on AC, so I had zero problems with temperature.
Location is great for the money: most attractions are reachable by foot , there are 4 fairly big supermarkets within 2...5 minute walk distance, couple of really good specialty coffee shops within 5 to 7 minute walk, wide variety of cafes, bakeries and restaurants, a pharmacy etc. If you compare the price to the options in the main touristic districts, it's still much cheaper to rent this one and buy a T-Casual card for public transport within zone 1, which will give you a possibility to travel anywhere within the city for around 1 EUR per ride, while living in a place that is more suited to living than more popular areas.
Going upstairs is somewhat difficult, wasn't an issue for me but something to keep in mind.
Overall, I enjoyed my whole stay and would like to thanks the hosts.