Easily the worst experience I have ever had on airbnb! When I arrived at the property the self check-in instructions didn't work as the keys weren't in the security box. This led to us waiting for around 45mins while the building security guard tried to get into contact with the host (he initially wasn't responding). Once inside, the property had not been cleaned. There were no towels, no bedding on the beds, the mattress themselves and the sofa were all covered in 'mystery stains' (including one that looked like blood on the bed) and the air conditioning unit was broken leaving the whole apartment unbearably hot. Despite the large amount of issues that this property had, we contacted the host and told him we were happy to let him resolve these issues rather than making a big problem out of them and he told us that he would send a cleaner early the next day.
We ended up waiting the whole day inside for the cleaner to come however nobody ever came. We message the host several times however at this point the host did not respond. I therefore had to contact airbnb customer services and eventually they agreed to cancel the booking and refund us our whole booking price as the host had violated the terms and conditions he had previously agreed to when hosting on airbnb.
Such a shame as this could have been a really nice stay... the terrace looked really cool and staying in this apartment gives you almost exclusive access after 11pm (with 2 other apartments on the top floor - other apartments on lower floors can access during the day) The apartment also had potential to be really nice had it been cleaned property too.
Overall, I can only recommend that people avoid this apartment and this host as what could have been a great stay turned into the holiday from hell, the host while initially being very polite and responsive ended up just ignoring me and leaving me to fend for myself in an unclean apartment without air conditioning.