Since you are announcing your service, I think this should be made in the Service Announcement section of the forum.

Pardon my bluntness, one first timing issue, how do you expect someone to send his coin to you for mixing and have to want for close to 1hour in other to get his coin back in which within that one hour a lot of things could have happened. Several confirmations which makes the fund gone forever. Not that I am saying your business is up for that but you must remove all elements of doubt in this kind of business which is purely based on trust.

On the second one, mixing service is based on complete anonymity and the onion version should be announced with any version you are announcing as that is when people tend to take you serious not that its in development. Again, by the time DDOS attack is launched at your service, its the onion version that would be the saving grace. Wishing you all the best.