I just signed up and started using it today with a small amount.  Getting set up was easier than I expected and the demo period is appreciated.  Easier than some of the other algorithm tools I have researched.  This was the first low cost option I've seen that's actually very easy to get started with.  I haven't had enough trades to be able to realize a profit, but it's been fun watching it make buy/sell orders. 

There's a lot of front-end polish work that needs to go into this to make it ready for mainstream.

• I would feel much more comfortable if SSL is enabled on the website
• Some front-end improvements/navigation which I'm sure will come.  Two clicks on the sidebar every time I want to go from viewing my bittrex bots to my reports in bittrex.
• We need some way to edit profile information and change passwords
• 2fa logins please!

I will continue experimenting and testing with this service using small amounts for a while longer.  I'll be more comfortable using larger amounts as more polish comes into the service, but I'm happy that the developer has been responsive on the forums so far.