We spent 4 nights at this air bnb. The location was perfect, just minutes away from the Trevi fountain, many markets, a grocery store was a minute walk and so was a yummy breakfast buffet. However, upon arrival, we immediately noticed a very foul smell of sewage of some sorts. We contacted Marimax about this the first night, and they tried their best to make accommodations. They said they brought a plumber in the next morning, the smell slightly improved after but was still there and not pleasant.
The communication was quick and good, and they did offer a partial refund which was great:)