Can somebody tell me if this is a decent PSU?

Hello,

I bought a few days ago a 2nd hand Xilence 1200Watt modular power supply. It's got 4x PCI 8pin connectors and 2x PCI 6pin connectors which is pretty descent so took the gamble and bought it.

So here are some pictures of it:

Sticker:


Internals:


Close-up primary:


Serial number (or how do you call it?)


Secondary caps: (KZE and KY)


Do you guys have some information about it? It seems to be a 800W unit if i look at the serial number but i'm not sure because i've seen more PSU's which had a 800W design and could deliver over 900W because it had some upgraded components. :)

Can somebody tell me if this is a decent PSU?