Well, JSE went live with their ICO today. I use the coins on my author website to sell my books as downloads, as well as Amazon etc so I find it very useful. I've sold more books using JSE as a payment method than any other method and they have only been on site this weeks! It's amazing.
However, another of the things I personally find attractive is the ability to mine JSE from your web page. Just register an account and let it run. Start the miner and go to work. There is even a downloadable app that runs on the desktop, so you can minimize it and so on.  I'm averaging about 50 to 60 coins a day. So that's pretty cool. They can't be taken over by the big mining farms, and will always stay available to the "small miner" which is a real bonus. I mean, who can afford to mine Bitcoin now?