Cecilia's apartment is excellent in all respects. It is large and spacious, beautifully decorated and spotlessly clean. Location wise, it is very close to the Colosseum and Roman Forum (literally a couple of minutes walk) and to the Metro. It provides a great base from which to explore Rome and (being in the lively Monti neighbourhood) provides guests with a very large selection of bars, cafes and restaurants on your doorstep. The apartment is very well equipped - the bed is particularly comfortable and the bathroom and shower are very good - and Cecilia has clearly put a lot of thought and effort into the furniture and decorations.
As a host, Cecilia is similarly excellent - she is extremely friendly and very prompt with communication. She also makes a real effort to suggest local sights and restaurants.
In short, I would stay again at Cecilia's apartment without hesitation and would strongly recommend it to others.
Thanks Cecilia for a great stay in Rome!