Having lived abroad in China in big cities my stay at Mei was exactly like what I expected.
Place is clean with fresh towels provided every day. I’m a light sleeper so the only major concern is some noise from the busy street below. Other than that you might find the place well situated between very accessible transportation options despite living in a small room and less than appealing building exterior. This is HK so while generally very safe you can’t have the same expectations like Los Angeles, where appearances take more precedence than being aware of personal safety.
Would recommend if you are staying in HK for a 1-3 days and traveling.