I am very tempted to buy the 600. But I tested the 505 in a shop a while ago and page turning speed was terrible. I am a fast reader and this will be the major issue when I am going to decide which one to buy. I saw the video about the 600 and page turn seemed fast if not as fast as in the txtr video.
Now the posts say it has improved with PDF. Has it also improved with epub? I know it depends not only on the device but also on the file and font. But maybe someone has seen the same document on both readers? Could anyone give me some kind of "Hausnummer" (approximate impression) like a little bit faster, speed doubled...? I would really appreciate to hear about it.
Just found the thread from mgmueller, which partially answers my question
https://www.mobileread.com/forums/sho...highlight=txtr
But more opinions are welcome!