This Sandisk is now, despite SATA III, not the fastest (no comparison to my Samsung MZ-7PC064D / EU that I have installed in my desktop as a system disk) but it makes a notebook noticeably faster than with a normal hard drive.
My Acer Aspire V5 will boot in just 20 seconds and the operation there is little delays.
A significantly higher quality work behavior.
For the competitive price, a clear recommendation from me!