And for the price you really can not say anything. There are also comparable sets (which, however, often a real beginner book with you) for 130 ...
All in all, highly recommended!
Another tip: For me at the beginning has to upload the source code is not working. After I while googling again and again to "the boot loader is broken" come has finally has been found (luckily) that the microcontroller just not right put on the board.