I have
just used it to mix a
lot of BTC with no issues at all. Not one. AFAICT it is not a scam and never was. They might have very bad/slow customer service in case something were to go wrong (I have never had anything go wrong so I would not know) but that is par for the course in Bitcoinland.
Very fast, you just: setup, send BTC, wait for the required number of confirmations, get new BTC minus the fee.
The number of confirmations required depends on the transaction volume:
Less than 25 BTC - 1 confirmation;
Less than 250 BTC - 3 confirmations;
Less than 1000 BTC - 4 confirmations;
More than 1000 BTC - 5 confirmations.
Pro tip 1:
When you setup the mixing you can enter the amount you want to get out instead of the amount you want to put it. That way it gives you the exact fee that will be required. The exact fee is never exactly 5%
by design. So I send the amount they calculate with the randomized fee and get out exactly the amount I want.
Pro tip 2:
Be sure to save a copy of the guarantee letter until you get your BTC back from the mixer. If you close the browser before you save the letter the information about the mixing transaction (input addresses and output addresses) is gone forever
by design (you don't want this information kept anywhere so they don't keep it). Since the mixing is so fast I just keep the letter open in the browser until I get my BTC. That way if something were to go wrong I could send a copy of it to the customer service. When I get my BTC I just close the browser and the information is deleted.
Pro tip 3:
Do not send less than the minimum amount of BTC! Most of the complaints I have seen about this service were from people who sent less than the minimum even though it says, right in the FAQ:
Is there a minimum transaction size?
Please do not send transactions less than 0.01BTC. Smaller amounts will be considered as donations.
