The location is great, especially if you plan to travel out of town - Garibaldi Train Station offers many destinations, including airport trains and is 10 minutes walk. Also there are 5 metro lines within 10 minutes. The Garibaldi area is pretty touristic and you can find a lot of shopping and dining opportunities.
The loft is very clean and pretty cool in the summer - there is really no need for an AC. The bed was good enough and the room big enough.
The host was very kind and nice. She did really try to help us, although she speaks very limited English. She even printed us some papers we needed and we are very thankful.
The minuses - no real kitchen. Yes, there is a living room area, but guest need to know, that during the week days the place is used as a working studio and there might be some people working, that makes it pretty uncomfortable to go to the kitchen or to the bathroom. Also, not good for a nap during the day, as it gets pretty noisy - both from the studio itself and from outside, as there seems to be another office right next door and employees are smoking in front of the window. If you are aware of these features, you can have a very nice stay, as in general it offers great value for money.