From a performance standpoint, the PC Power & Cooling SIlencer MK III 1200W PSU is boasting a very good voltage regulation within its power spectrum along with very clean DC output - both important factors in heavily loaded and overclocked game PCs. The device has been designed to power your SLI/CrossFire setups and offer stable voltages, great efficiency and decent temperatures.
Some minor issues with the unit could include the lack of more 6 PCI connectors and temperature protection circuit, despite its low overall temperature due to its high efficiency. In addition, its $300 price is very high for the casual gamer, but don't forget that its is still among the cheapest 80 Plus Platinum rated power supply in the 1200W category. In addition, its 7-year warranty ensures you'll be enjoying the device for quite some time.