I wanted the speed of the SSD in the mini. It's been a fantastic box but slowing down a bit lately. I also wanted to have a fresh OS install without killing what I had and restoring from backup!
The whole process went fairly well. The iFixit instructions are very clear with enough detail to keep you out of trouble. I do agree this is not an upgrade / repair you should do if your not comfortable working inside a computer, however again it was not overall that bad. The whole process took about 45 minutes. Pushed the button and all was well! Whew.
1. Don't do this if you have never worked inside a computer before. Get someone who has to help you.
2. DON'T RUSH! Measure twice cut once so to speak. Take the time to line up the mini the way it is in the picture. Read the instructions carefully each time. Assume nothing!
3. Use something to set your screws on that will not let them move around AND does not create any static (you do have a static strip on.. right?)
4. You do not need to remove the third screw for the fan, it will come off the rubber piece.. however it is not as easy to get back on again. You may want to consider just removing it (and you will be further down in the instructions anyhow).
5. When your putting the new screws in the new hard disk, only put them on two sides, insert in the frame, then put in the other two. I missed this and sort of forced it in... really lucky I did not break the frame.
6. The new cable is pre-bent. You should not need to do much to it.
7. There is noting really holding down the top drive. It just sort of sits there, although the case likely keeps it from bouncing around.
8. Read the instructions carefully and multiple times. Do not rush (just a reminder).
Overall it went very well. I'm delighted with the speed increase I am seeing already. The kit is very much worth the money!