Just use the Centum Mark Hotel.
This is a very nice place to stay.
The value is good, but during the unmanned checkout system I was one minute late and was charged a fee. Considering that the elevators get crowded at checkout time, allowing about a 10-minute grace period in the system would be more helpful for operations.
At Kimstay, check-in and check-out are done on the second floor via an unmanned kiosk. You have to scan your ID and use facial recognition, so older guests who are not familiar with it may struggle. Other than that, the price is a bit cheaper and everything else is good.

Children allowed
8~17
Fee: Additional charge
Information: Offsite indoor parking, Offsite outdoor parking, Parking tower, Only one parking per room available