Summary: I have had this drive fail not once, but twice. Crucial's power cycle procedure failed to fix it the first time, but it just started working again a month or so after it failed the first time. I decided to give it a try again and it completely failed six or so months later. A hard drive should be reliable before it's fast. I would never recommend buying this drive.
Cons: It failed after about 10 months. I can still mount the drive as a slave but a considerable amount of files can no longer be read from the disk. If you're going to use this drive make sure you backup your work frequently.
Summary: If you are using this as an OS drive in a desktop and you don't use hibernation - you can save a ton of space by turning hybernation off (windows related - do a google search for the commands). I would move the page file if you have another drive - to save room as well - at the price per gig SSD's still cost - it's just not worth it to keep junk on the drive you don't need
Pros: This drive promises fast I/O and it delivers - write speeds are "OK" for an SSD - still blazingly fast and this drive shines where it counts - which is peak I/O performance.
Cons: It's a laptop drive - so if you want to use it in a desktop you need a tray to put it in. It's only 256 GB
Summary: After trying multiple times to clone the hard drive, contacting customer support and then following their advice I was unable to switch to the new hard drive because it wont transfer the OS properly. I am running Windows 8 and was skeptical because I wasn't certain that the cloning software would work. After being assured by representatives at Crucial that the cloning would work fine, I decided to order the hard drive.
Pros: It could be fast based on other reviews, but I haven't been able to find out.
Pros: Transfer software and device worked great, couldn't be easier, took about 3 hours to transfer. went to youtube to find out how to actually replace the drive in my HP laptop. Very easy if you take your time. My core i5 laptop runs very fast now, boots into full working windows in about 45 seconds.