[SOLVED] Are Be Quiet power supplies good?

[Moth254KF]

Is the be quiet! System Power U9 80 good? I find it more cheaper than the Corsair CX 650w. Or is not as good?

 

[--SID--]

Corsair CX x50 (non M) is much better than bq! U9. Any Corsair CX-F available?