I ordered my RunCore 128GB SSD upgrade for Macbook Air Rev. B/C last week and received it today. The package is very basic and contains: 128GB SSD Parts for USB HD enclosure (more on this in a minute) Screwdriver Logo packaging material. At first glance this package is missing something very important: instructions. It contains no instructions of any kind on how to use the included parts. The USB HD enclosure is provided in several pieces which you need to put together. There is no way to simply plug the drive in and close the lid. You will need to push the circuit board into the case with the hard drive (if you can figure out how to make it fit. I can't.). I proceeded to install the SSD ignoring the USB HD enclosure since I had already backed up my data. The iFixIt guide below has correct detailed instructions on how to change the Macbook Air hard drive. They even link to the tools needed as the included screwdriver isn't the right size. http://www.ifixit.com/Guide/Repair/MacBook-Air-Hard-Drive-Replacement/860/1 (Link fixed.) I used this screwdriver which I found to be perfectly sized for the screws used in the Macbook Air. The blades of the screwdriver sat flush with the screws. The actual installation of the drive wasn't what I consider easy, but virtually anyone can perform the upgrade. Changing the actual hardware takes between 15 and 45 minutes. Unfortunately I can't continue by including benchmarks or software in the review because (so far) the RunCore drive isn't responsive. I've contacted their support team so we'll see what happens from here. Update: Matt from RunCore replied to the thread with additional instructions which seem to have fixed the SSD. I connected the RunCore SSD to the circuit board according to the provided instructions without putting it into the case and it started responding. It was a strange error. I can't speculate as to why the drive wasn't responsive without this step, but it does seem to have fixed it. I just want to touch on a few additional points. 1) The SSD is fast. The SSD itself lives up to the hype. It is one of the fastest SSDs I've ever worked with and makes my Macbook Air Rev. B feel like a new machine. Note: This was a platter hard drive to SSD upgrade. 2) The included extras need work. I appreciate extras that make the work easier. Including screwdrivers, a USB HD enclosure, and copying software makes the package a lot more complete... at least in theory. The black handled screwdriver included with the package is the wrong size for working on the Macbook Air. A different size screwdriver with a much longer handle (to make it easier to grip) should be included instead. The USB HD enclosure is a nice touch for copying your data. I like the idea, but the included HD enclosure just feels poorly made. The most annoying part for me was the very tiny screws and impossibly hard to hold yellow handled screwdriver. The current USB HD enclosure should be replaced with something more robust with less assembly required. 3) The details don't matter. The upgrade is worth it. After fighting with the SSD, taking the Macbook Air apart three separate times, and reinstalling all my software, I still think the upgrade was worth every bit of the trouble. I can't describe how smooth the operation is now with the new SSD. Just for fun I compared my 1.6GHz Macbook Air Rev. B with the 128GB RunCore SSD to a friend's 1.83GHz Macbook Air Rev. C with 120GB HD. There is no comparison between them. My Macbook Air opens Safari instantly while his takes approximately 5 seconds. Needless to say he will be buying a RunCore SSD as soon as he can. Upgrading from a hard drive to a RunCore SSD is a no brainer even for new purchases. I won't be buying any SSDs directly from Apple again.