Quantler?? Free cloud based algo trading

[bobido]

Found it online, this any good? They say it is free

Quantler. com

Compatible with over 250 brokers
Low latency (NY and London) - cloud hosted
C# based, and open source
Tick Data support
Simulate latency, spreads, commissions etc…
Modules marketplace
Compare backtest results (showing how small changes can impact results)

 

[NVP]

if its free it must be good ........

 

[bobido]

They also offer a paid version, is that one better?

[EDIT]

Just because something is free, does not make it good by definition, that is why I am asking :s