Far from the city center but close to a metro station. The heating wasn't working and we were cold all the time, the water was actually cold and I don't know why because we follow the instructions of the heater and everything seemed just fine. As we were cold I tried to grab another blanket but it was dirty with stains on it.
We found some insects in the apartment, we sent an email about it. The cleaning lady arrived half an hour before check out and stared at us while we were finishing packing (no pressure at all I guess). Also, when we arrived we waited outside while it was raining for half an hour because our key didn't work but the lady from customer service was very helpful. I don't know if I didn't check well but I would appreciate having an hint on the stove because I didn't know there was an induction cooker and I had brought my own coffee maker (which I couldn't use).
I hope my comments would help improve your structure, the price was actually amazing compared to other places.
Best of luck, Sara