Xiaomen Airlines provide the best service among chinese airline companies
The more unique point is its mileage program. The mileage accumulated will not expire like the other companies in 2 years. This accumulation is life-long. And a return ticket from singapore might be almost enough for exchange a short distance domastic flight, depends on which class you are in.
eg. The economy class F, is 25% of mileage, which means with 4 times flight, you can get 1 more flight for free for the same route.