Summary: The packaging & documentation assumes you want to use this as a secondary drive, to be a high-speed cache for your main drive. I didn't bother with any of that: I just got a couple of these (on sale) and used them as the main drives in some computers I was building. 32GB sounds small, but it's ample enough for an OS, browser, some office software, a few games... And yes, they're fast! (I like the included mounting brackets, too. Simple but sturdy.
Summary: I would recommend not installing the provided software and use the built-in cache feature in Intel Rapid Storage Technology. The SanDisk software was constantly asking permission and frequently lost its memory and had to start over. No problems since setting up via Intel.