I use this SSD as a system disk for the OS (in my case, Win7 Prof.) and the most important programs. Everything else I've swapped to "classic" HDDs. The start-up of PCs was rapidly on the installation and setup. In particular, if you have still an "old" PC or note / netbook, this SSD is a perfectly sensible upgrade, the price-performance ratio is right. I am very satisfied and would recommend this SSD without reservation further.