The drain to the shower wasn't draining when we arrived, they took care of that, but then sewer gasses were backing up through the now open drain. We asked several times for them to handle it. They were very dismissive, saying it is normal in Lisbon.... Sewer gasses are dangerous and are not "normal" in residences. We had to have all the windows in the apartment open to vent the gasses the entire time we were there. They sent someone out once and they said they didn't smell the gas, so there must not be a problem. Well we had all the windows open, so you wouldn't smell it!
The renting company was very dismissive and NEVER corrected the problem. I would not stay there, and would warn anyone else considering it to reflect upon whether you want to be breathing in sewer gasses from everyone else's apartment through your bathroom! Also, you should take note of how poorly we were treated when you make your decision.