Mining pool especially used by users in mainland China and Russia among other important locations, it is made with more than 17% of the mining power of bitcoin, that is, it is one of the most important and remarkable platforms in this market.
The best are the payment processes that are carried out at the request of the user when they reach a minimum amount.
In general, this is one of the most successful and respected mining pools that have been on the market for over 7 years, which gives it a certain degree of respect. So if you own the equipment and are willing to pay a high fee at first, but your security and speed of payment really pay off.