I promised to share my experience with ereaders if I get one, so here I am...
In fact, the ereader I bought has a beta feature allowing me to surf and read on internet. Since it is a beta feature only, it's not the same as if you'd surf on a phone or a tablet, but depending on a site, it can still allow you to read the contents (more or less comfortably).
The ereaders allow you to read different types of files (depending on the model). Mine, for example, allows to read epub and pdf (amongst others) From what I understand, epub can be read more comfortably and nicely (the way you turn pages for example), but I haven't yet looked into converting my files (the novels I am reading) into epub files. I will do this soon.
So, for now, I am reading the novels on my ereader as pdf files. I won't say it is 100 percent comfortable, the this isn't what the ereader is created for, but it is quite OK. Since I am doing this in order to read these novels on a device that is considered better for eyes, I 'ignore' the non comfortable part. For example that I have to adjust the size to the screen when I turn the page.
Also, even this is secondary reason but still important to me, I can read the novels outside, since the screen of the reader allows you to read under the light or the sun (unlike the screen of my phone).
One would think I am selling ereaders:))) I am not:) I am just reading a lot and I thought I couldn''t keep printing novels or reading them on a phone.