Nice drive!

I upgraded from a Sammy 830, which performed very well. I used Seagate's free DiscWizard to transfer my Windows 8.1 system to the 600 Pro and it worked great. I can't say for sure, but opening programs does seem a little faster. Benchmarks place this drive faster than the 830 but slower than the 840 pro... but this drive is (less expensive) and still has a 5 year warranty and is ''enterprise'' grade. Five stars for value and great performance, even if it's not the fastest SSD in the world.