Has anyone tried RevenueBot?

I recently came across this bot trading website called revenuebot .io
The features and pricing looked pretty good. No monthly or subscription fee. Just connect your exchange, chose your trading pair and choose or create your bot. They will charge 20% of your profits capped at $50 a month. Sounds too good to be true.
Anyway, I wanted to give it a shot, so has anyone used this or can confirm whether the bot is actually good or its a ponzi?