We found this place surprisingly uncomfortable for two main reasons that may be relevant to other travellers too:
i) The bed: the mattress had no support at all (it's not memory foam, felt more like a partially blown up air mattress), we slept two in it and we're both around 120 pounds but we sunk in very deeply. My friend with chronic back issues barely got any sleep and her back hurt. My other friend who took the couch didn't fare much better. I have slept in many subpar beds and even I was bothered by the mattress.
ii) The heating: the heating is extreme and erratic: it was either off and really cold or very on and hot. Instead of working continually, it worked in spurts and the resulting temperature fluctuations kept me from drifting into deep sleep as I woke up quite a few times.
Lastly, another factor that was stated in the listing but that we underestimated: the early morning noise due to the young children. Saturday morning we were woken up early because the sound of footsteps and other noises is very clear through the ceiling (clearer and louder than in a normal apartment).
Now, because we checked-in late Friday, we didn't contact the hosts then, and because we had a lot of plans Saturday, we rushed to pack up, check-out and head out right away without communicating with the hosts. So, we did not give them a chance to help though I am unsure what they could've done about the bed and heaters (aircon units) on such short notice.