Excellent apartment for larger family or if more than two adults, given the 3 bedrooms and two full bathrooms. San Lorenzo is a grittier neighborhood than what a tourist might expect in Rome. In our case, this is what we wanted. Except for one tram trip, we walked everywhere within the walled city. The apartment is on the top (5th) floor but there is one of those old-style elevators that worked fine. Location is in a small piazza that has an excellent restaurant next door, a cafe/bar/eatery and a fresh fruit/produce market. Two supermarkets 1-2 blocks away.
Only negative is the slight but persistent odor which appears to originate from the drains. This in no way affected our stay but guests should know about it.