I know that there are cheaper but does have 2 screwdriver essential for mounting and USB / SATA allowed me to check the functioning of DD before installation and that will have more than one use. These accessories are not usually present in competing kits. The editing is well detailed familiarity if you are familiar;)) and the DVD case is very well made with metal base and plastic cover is thick enough to give a good product. Shipping and delivery conforms to the expectation. The insertion of SD media is not very easy but it is tight in a MBP! We go from the screwdriver torcx cross and complaint we do is that it is hard to differentiate as they are the same color (red cap and blue would be better than 2 red) . In the end everything went well, faster than I thought, and what a nice surprise turn his MBP carefree.