Reasonable if you need somewhere to sleep, but it would not have taken much longer to take a taxi to an Orchard hotel compared to walking to Jewel and finding YotelAir (at the opposite side from where I entered Jewel). The room is literally a bed (with a warning not to put your luggage at the foot of the bed as the bed moves, and damaging the bed by doing so incurs an $800 fine), a narrow space at the foot (for the bed to move), a narrow walkway beside the bed (just fitting a large suitcase) and a bathroom across the back of the room.
After a long day of travelling, I just wanted an easily accessible bed, which is about all the hotel is good for, but a taxi to another hotel would not have added much time. There is a sign saying the temperature can only be set between 21 and 24°C, yet my room was stuck at 16-16.5°C. Pretty cold, but the blanket was decent.
Best used as a transit hotel, if you really want to see Jewel or have to leave airside and cannot access the airside transit hotels.