CoinMixer is respected and featured on many websites such as DeepDottWeb.com for the last year. It is believed to be one of the most secure anonymous bitcoin mixers with it’s proven algorithm. CoinMixer is accessible through the Tor Browser (Darknet) and the Clearnet for your convince. As with any website it is recommended to always use the .onion Darknet URL for extra privacy.
To ensure you never lose any BTC, a letter of guarantee is provided to you as evidence that a bitcoin mix was started. You can then contact the service anytime on the forums or via their support E-mail.
You can also sign up with their built in affiliate system if you have friends or any kind of bitcoin traffic, and earn 50% on fees. The payouts are automatic withdraws once you start earning money.