We had high expectations for our stay at Costanza's. Unfortunately there were several shortcomings during our visit of 12 days. We are seasoned, well educated travelers who give very honest and accurate reviews of places we have stayed. This was our eleventh Airbnb stay over the past 9 weeks and found numerous issues which distracted us from having a positive vacation. None of our other 8 stays had any issues like this. First the apartment was not clean when we arrived. The bathroom sink and shower area had black hairs in them, the shower walls and floor had mold and mildew, the bathroom mirror had streaks of toothpaste. The kitchen was fairly clean with the exception of some silverware which had brown residue on them, possibly chocolate. The floors have not been cleaned in a very long time. After taking a shower and stepping onto the floors the bottoms of our feet were brown with dirt. The floors have not been mopped in a very long time. The bedroom smelled from some stale, repulsive odor, however even worse than that was the fact that the bed sheets smelled from being doused with a cologne or perfume. We had to immediately wash the sheets at our own expense. Once we took the sheets off the bed was even worse. The mattress has gray and yellow stains on it. We flipped the mattress over but the other side had the same disgusting stains. Second, the internet service is not only unsecured it is practically unusable. The service is either part of the building amenities or it belongs to one of the neighbors. We did not have to log in as it unsecured. We literally had to stand in the corner of the back part of the bedroom to attempt to access the internet. It was either very very slow or completely non-responsive. There were several days when the network didn't even appear when scanning for a network. In addition not only did we not have any internet access in the apartment the last three days we staying there but we had to frequently go to cafes and restaurants just to have internet access. Part of the appeal of staying at Airbnb's is the fact that you can use their filters to select exactly what you want during a stay. We had sent several messages to the host regarding our concern about the internet with no response from her. Having been told that free internet service was provided and that we were not charged for it is like saying the toilet and refrigerator are free and you are not being charged for it when those amenities are part of the total bill for a stay. Third, there are safety issues regarding the building and apartment. When you are at street level and are about to leave the building you have to stick your head out before stepping onto the very narrow sidewalk. This is a very busy street and there are strollers, pedestrians...