We loved our stay at Maria's place. We got a very warm welcome by Maria and her husband Walter even though our flight had an hour delay. And they had also arranged an airport pick up for us that I would definitely recommend.
The apartment is perfectly located only a few minutes from the colosseum, metro, bus... and it is spacious enough for 4, clean and wel equipped.
Maria was available via text and answered quickly if we needed anything. She even remembered my birthday! Next time I'm in Rome, I will book Maria's place again.