I liked that the instructions were very clear and we had no problem getting into the apartment.
Everything was in order and clean. Overall we had a really nice stay and if you like a soft comfy mattress then you will have a pleasant stay, but if you need more support for your back then you might have trouble getting a god night sleep.
I do have to say (maybe because the site insisted in translating everything and it might not be clear in spanish) but it's just ONE room. It didn't bother us that the bed and the kitchen shared the same small space, but if you travel with someone who insists in getting up earlier than you and starts moving dishes and pots around, that might stress you a bit. BUT there are really good breakfast and coffee places a couple of blocks away, so you can suggest that to your travel partner.