I smelt GAS when I 1st enter the apt. Din think of any other & opened the sliding dr for ventilatn. To use gas stove. I was told to turn on a valve under the sink. When I turn the valve, I can hear hissing sound which made me think there may be a LEAK. Day3 of our stay, the host text to say she wan to arrange for tech to hv a "normal" check on gaspipe. She didn't plan to hv some1 supervise the gas check & asked us to leave the key at the keylock outside the apt so the tech can access the apt. We can't stay for the workman so we had to pack our things &lock our luggages. Same thing for Day5 as the host said there needed to be a followup. But the gas smell still continued. So I wld off the valve unless i need to cook. The cleaner/host made a mistake re checkout date & wan to clean our apt 1 day b4 our checkout. Overall the apt was ok if not for gas issue. Dusty corners, random bottles under the bed but we dun bother. Gd locatn but apt can get very bright/warm in the afternn (face west).