It is a mining service specially aimed at the Chinese mining public, especially aimed at bitcoin and etherium. It is a highly secure service and backed by a large group of miners who represent a high percentage of bitcoin's mining power.
What is more attractive is the payment process that is carried out the next day when the minimum withdrawal is reached.
In general, this mining pool has neutral criticism regarding the level of security and payments to members, however it is noteworthy that despite having mixed criticisms, it has a high mining power, taking into account the market average.