Take the MTR Tsuen Wan Line from Yau Ma Tei to Tsuen Wan without changing trains. Go 1 1 stop. The fare is 8.5 yuan, and the journey takes about 23 minutes.
Generally speaking, Yau Ma Tei will be more convenient. If you are not familiar with the road, you will have to change to the light rail at Tin Shui Wai. It's not easy to find (of course, you'll get used to it after two or three times). In fact, where you live depends on where you go to Tsuen Wan, because Tsuen Wan West and Tsuen Wan Station are different stations with different locations. It is the most time-saving to use direct railway to reduce road traffic.
As far as the living environment is concerned, the same efforts are certainly much better than Hu Hai Haiyi Hotel!