I'm currently using the 360 Internet Security by Qihoo 360. Has anyone tried this and is it reliable?

The software currently seems to have 3 different security engines which are:
360 Cloud Engine
QVM II Engine
BitDefender AV Engine

So far its working pretty well, but it does detect some steam games as Malware. Also i just wanted to know if anyone has tried this software or not and if there's anything i should be aware of if i keep using it.