If you have ever seen "My little sister can't be this cute!" this is by the same author. The plot quickly progresses and while some of the introduced characters can be a little bit loopy, The main character, Masamune Izumi is easy to relate to and while there was a few times I wanted to punch him in the face, he still is not such a typical dense protagonist.
Eromanga Sensei (the character) is easily the hidden star of the show. The progression so far makes it so not too much information is revealed about her at the beginning, which is good for a story with suspense, which this story seems to draw its viewers in with. I have also read the first two volumes of the light novel and can say it hasn't deviated at all from the source yet. We'll see.