Cristina is a lovely person. we arrived late to Rome and she had no problem to wait for us. she left some croissant for us what was very nice. Apartment is big enough for 4 people with 2 big beds. metro ( re di roma) is just 5 min from apartment , colosseum is less then 30 min walk. Because next guests were come late day we check out we stayed in apartment until 2pm with no problem.
on via Etruria close to apartment was a place with delicious pizza make in front of you( margarita for 4 euro:). It is a lot shops around
I highly recommend Cristina place