People need more information before trust your service, some questions;
- there's no any alpha test? You can send 0.1 eth to some people here and test your mixing service.
- how do exactly this mixer works? Just like sending new eth to people? Do you mine eth? Or you have eth mining pools?
- max amount that you recommend to mix eth? As you've mentioned it ; In case of sending a higher amount than the recommended
  max amount you will just have to wait a few minutes longer.