This was the first negative experience I have encountered since using Airbnb, which is a great shame as we have been huge fans of the platform. The issues were made a lot worse by the host's responsiveness and seeming disinterest to address the problems.
On the plus side, the accommodation was clean and in an okay location - fairly central but not too noisy.
On the less positive side, we had problems as follows:
1. The accommodation advertised (7D) was not the apartment we were allocated (5D).
2. The pictures do not represent the property we stayed in. The kitchen, living room and bathroom were different and the pictures make the property look a lot nicer than it is. The flat is tired and in need of a makeover, with many broken items. It has a musty smell.
3. The single bed in the single room (which is a camp bed) was broken and collapsed the moment it was sat on. We notified the owner of this and he advised it could not be fixed and to use the other beds. We required all four beds. As such, one member of our party spent the entire three nights of our stay sleeping on the sofa.
4. The fridge freezer was broken providing no cooling facility, meaning the supplies we brought had to be thrown away. We notified the owner of this on Day 1, but received no answer until Day 2. A replacement unit was provided with a broken freezer.
5. The heater was broken.
6. The lift malfunctions and two members of our party were trapped on the ground floor for 5 minutes before the doors released.
7. The lock on the balcony door is broken.

We are awaiting a partial refund, which Airbnb has kindly said they will honour but the host is ignoring.