The installation took about 30 minutes because I'm all gone through exactly according to the description, and of course nothing would break anything.
The description which is coming along into the house been printed on a small Fyler "little book" as one already does not require a computer or mobile phone to be able to execute this order.
The frame fits perfectly into the laptop and makes his service so far perfect. It will not require any drivers or similar.
rebuild -switch -
The perfect is then that you can enter the developed SuperDrive in an external frame and can use via USB.
(The drive looks exactly like sold by Apple to 79Euro)
I can recommend this manufacturer only sincerely.
The only thing I noticed only when the laptop was returned to service, the 2 hard drive running in the context of hardwrk you can hear a bit louder than usual as it is under the keyboard.
But this is so minimal that can not interfere, otherwise install a 2nd SSD who has so much coal.
My MacBookPro 8.2 now runs with a 120GB SSD for the system and the 2nd hard drive is the original Apple 750GB.