Using the tool provided, the instructions and the advice on the website of the expansion of the DVD drive and the installation of the SSD managed easily, even if the instructions in a few places was inaccurate. Very useful were the tips on the manufacturer's website to continue to use the DVD drive as an external with the software and the Eject button of the Macbooks. High praise for this.
The adapter itself is accurately and served its purpose.
The external enclosure for the DVD player is made of plastic, optically fits perfectly with the Macbook Pro and a quality image. Only the Ausparung to insert or eject the CD / DVD does not fit 100% to the opening slot of the drive, so I had here with gentle pressure "re-bending". But now it is ok.
All in all, I did not need 2 hours for the action. In my MacBook Pro (Mid 2010) now bedindet a 120 GB Sandisk Extreme SSD and a 1TB Samsung HDD. The increase in speed is phenomenal!
Only gripe is the high cost of postage the manufacturer "hardwrk" which sold right here on Amazon for me. For the small and lightweight package hit a whopping 7.14 EUR to book. I ordered the Adapter Kit on Wednesday about 15 clock, it was delivered by DHL on Saturday morning. Shipping and delivery speed can therefore be made more customer-friendly.
My conclusion: For product 5 stars, despite the relatively high price. One star deduction for the shipping.