Stayed two nights at Saimir and Mary's place on our honeymoon and we were very pleased with our decision. We had a 16 hour travel day ending with a train to Florence that arrived at 23:50 but Saimir still agreed to meet us for check-in at midnight which was amazingly accommodating.
Clean room, nice kitchen and bathroom. Exactly what we expected for a hostel environment with private rooms. Easy 5 minute walk from Santa Maria Novella (the main train station) and 10-15 minute walk to visit Michelangelo's David. Couldn't have asked for anything else and would definitely book again.