Some time ago i used this service.
I was interested in the option "Stealth Pool" on this site, I used the service for the intended purpose, the amount is certainly large for me >30,000 USD, given that the fee for this operation is from 4 percent.

I completed the order and after some time received my payment minus 4-5%
percent of my amount, but I went to the blockchain explorer and returned a few transactions up to establish the source of payment, there was no limit to my wondering, my deposit transaction from the withdraw transaction was a chain of 5 transactions, in fact, mixer paid me 100% of my funds back that I deposited to them.

After I contacted the support service in an impudent manner, they completely returned 4% of my costs to me back, but before that they asked me to delete a message from this thread where I indicated only that the support does not respond 12 hours to my ticket.

From their words they say there was a failure, I do not believe in their words.

I WANT SIMPLY TO WARN USERS THAT THIS SERVICE HAS A RESERVE OF MAXIMUM 1-2 BTC, I DO NOT RECOMMEND USING IT. They will simply deceive and scammed when they receive an amount greater than mine, $30,000 is not enough for them.

In confirmation of my words, I will provide a user with a good reputation in this forum a letter of guarantee. Only he must confirm that the letter is correct, and the connection between deposit and payment of 100%, do not publishing my addresses and other information.

Caution with such services. good luck.