Current state is still very bad to be honest, but its in beta so its "allowed". I would not buy until get some real results or ETA/roadmap for final release.
I wouldn't say very bad but it has come a long way. Solving the problems with how Triangular Arbitrage works in exchanges are hard and the developers of BitRage has come up with something unique to solve it and polishing is what is needed. I hope you get to check it soon once it has been released. Don't forget to contact me, I could hook you up fast if you are ready to buy.