Actually, I wanted the program only be ordered through the Microsoft Store directly for 79, however, wanted a credit card, so I looked at Amazon and was very pleased with the favorable price. At first I was not sure whether it would work, there was good and bad reviews, the positive are in the majority. Since I had a Microsoft account, it went off immediately, the file of approximately 1.1 GB I invited smoothly down and the installation also went relatively quickly. At first I thought I had to enter a product key, but I did not have that runs automatically during installation. After everything is installed, you have to simply log in using his Microsoft account in order to make the programs start Clear. I am satisfied and can the negative reviews not understand therefore. Excellent value for money, which makes a student life easier.