I've been using Ionomy for a while now, I do like the platform, It only has a few trading pairs as you can see in the screenshot, and also a very low volume on most coins, actually the only ones with some sort of 24h trading volume of up to 1 BTC are Hive, Steem, and Ion
It has a very simple user-friendly interface but too bad there aren't too many trading on it.
However, if anyone would like to check it out here is the link https://ionomy.com/en/aff/8e3668d99ce7986cc3878523f66b6370
They also have a referral system in place for those that want to earn a commission from the trades done by their referred traders.
Keep Hiveing !