Joinmarket developers, your software has been around for a couple of years. The documentation still sucks. So does the user interface, if you can call it one.
Have you considered doing some usability studies? Nothing fancy, just grab three or four friends/relatives/neighbors, ask them to install and use joinmarket with NO HELP FROM YOU while you quietly and patiently watch.
Then act on what you observe.
If you don't want to do the above, then would you please change the title of this thread? Make it "Coinjoin that hardly anybody will actually use".
I do know that when blockchain.info offered a similar service that I liked it, but apparently there was a security vulnerability that forced them to stop offering the service. The main thing that I liked about the service was that it easy to use. I have visited this thread many times and have NOT found anything that looks like ease-of-use would be coming along soon.
Different technologies and methods of obscuring Bitcoin trails are a great idea. But it looks like Bitmixer.io is the leader in this "space", and the CoinJoin community does not seem to be coalescing around an easy-to-use service.
(they do call me an impatient sort)