What convinced me besides the size and expandable storage and handling. The touch screen works perfectly, the buttons below are useful if you do not want to use the touch controls. The internet works well, except for occasional flickering when loading is all perfectly readable. Even Facebook works well.
A single shortcoming I have yet, the Sony store is not yet in Germany worth mentioning. This function should be removed before it comes to the equipment. The different formats but I can buy ebooks in almost every shop, interfere so does the lack of store.
I am the only one in my family who has the Sony Reader, for example, my parents both have the Amazon Kindle, but I would make up my mind over and over again for Sony. The handling reminds me much easier, I also do not like to be set to a store. Overall, I am completely satisfied with my e-reader and am pleased that I have this.