Hard to fault this place and we are pretty fussy after living in Airbnb's for the last 8 months. Maria's interconnecting apartments are clean, extremely well equipped and generously appointed. The aircon works perfectly, the showers have good pressure, the kitchens are brilliant, there is no bothersome street noise and the location in central Trastavere is convenient to the local area with easy access to public transport.
Raluca (the lady who checked us in) was so lovely and allowed us to stay in the apartment beyond check out time due to issues we had with our transfer.
If you want a really lovely base to call home while in Rome with all the mod cons and creature comforts (especially in the hot summers) stay here!