At the time of this review, there are 2 rooms to let on airbnb at Sebastian's Roma apartment - same rate. I was in the one to the left of the main apartment area, all the way to the end. I kept my expectations in check due to the bargain I found, and my room met expectations for what I paid for. As for the couple of issues faced during my stay (noisy neighbors, problem with hot water), Sebastian resolved them within a reasonable time frame after a quick message. Only thing I felt was missing in the room and should've been included, is a stand fan. Mexico City weather is pleasant enough in October, but the afternoons can get stuffy. The bathroom wasn't as per the provided picture (it is the same bathroom, just not in the same condition!), and while I was ok with it for 2 nights, I can see how it can potentially be an issue for other, more hygiene conscious travelers.
Overall, still satisfied getting my money's worth plus having a proactive host.