Not a dev, but have the bot and used it - it works on BITTREX - arbitrage screen is very cool - looks at I think 5 different exchanges BITTREX, CRYPTSY, POLONIEX, CEX, C-CEK

that being said, there is definitely some polish needed, sometimes need to refresh screen to get it to update, sometimes have to login to central exchange to cancel orders

Hopefully not too long before RHINO and much more advanced bot features are released