It is the only hard drive in the system.
Are the benchmarks ok ?
I actually think it takes longer on the windows is loading graphic than it did before.
You only really see the difference when you go back to an old drive and try to reboot your computer. Then you know how fast SSDs are.
Ive run this benchmark, is it OK? , If so, I'm not sure why windows doesn't load any quicker.
For my workflow it's a tremendous difference especially when working in Lightroom where my RAW images are cached to the SSD. I never turn my PC off so boot time wasn't a buying factor of these SSDs (even though my system boots in about 27 seconds to all startup applications ready and waiting which includes POST).
Here's my before and after scores with the driver. Speed has gone down a little.