The apartment is on a very pretty street and with the windows closed is very quiet inside. Daniele responded before and during our visit very quickly.
The first night we discovered there was no hot water and by the time we woke in the morning it was hot. For our arrival, Daniele met us at the parking garage on Ludovisi. From there it was about 10 minutes walk downhill. Remember that will be uphill with whatever bags you have so pack accordingly. This apartment is very near to the Spanish Steps. It was the first time I stayed in this area, in the past I have stayed near to Piazza Navona and Farnese. I would say if you are in town primarily for things in this area, such as the shopping, then this location would suit your needs. I had my sisters with me that were visiting from the US. It was a long walk each time we went to explore other areas such as Piazza Navona, Campo dei Fiori and to the Pantheon. Not as far to Trevi.
I read a remark about this apartment needing a through cleaning and I agree. Accumulated dust on window trim, the shower has a lot of grime as do the white wall tiles. Doors had grime from previous users and sofabed pullout had a layer of dust at the top near where pillows were. It is a very cute apartment and probably has had a lot of guests with very little time between for cleaning.
For the bathrooms: one is ensuite and that has a tub.
One is in a hall off the kitchen and has the shower. The other is a half bathroom. That half bath has no where to place the hand towel or put any toiletries out. A group of 4 would be the maximum comfortable with the layout of the bathrooms.
There are 2 large and bright bedrooms at the front with large windows out to the road. Those are both very nice. The 3rd bedroom is at the rear of the apartment and functions as a living room when not in use. It is a pull out sofa. The bed sounds and feels more like a cot but isn't too uncomfortable. Just know it is a very tight room and compared to the other 2 bedrooms you would be disappointed if this was the room you had. We did not cook in but did use utensils and had to wash them first as some had food still on them.
With changes to the cleaning crew this would be a lovely place.