Question about tolino vision 4 HD

quickly as a small review to my question: I find it a bit of a hassle to download the EBooks from the Playstore to the PC and then sync them to the Tolino. It works, but only with a bit of expertise and poking around.

The Tolino vision 4 HD supports the following formats: PDF, ePub, ePub (DRM) and TXT.
The e-book must first be downloaded to the computer using Adobe Digital Edition. Either as ePub or PDF. Then the book can be transferred to the Tolino. (Instructions can be found in Google Play under App Info of the book).

I have never tried this as I download the books directly from Orell Füssli and Weltbild.