Maria's place is in a fantastic location-- perfect for walking and sightseeing in beautiful old Valletta. Maria was quick to respond and very kind in her messages (i.e., when the wifi wasn't working and a technician had to come for repairs), and she very kindly left us a bottle of wine to enjoy upon our arrival.
I slept in the back bedroom and enjoyed the peace and quiet, though my mom (who slept in the upstairs front bedroom, closer to the open-air hallway) said she could hear a bit of noise through the front walls.
Aside from that, nothing but praise for the fantastic location and hospitality. Thanks Maria!