I just finished reading the raws, and it's a shame the translation isn't further along. I've never been sucked into a WN as much as I have this one. Many, many tears were shed. I can't get up the urge to start a new novel when I could instead reread Bookworm for a third time in a row.
The MC is a bit self centered and aggravating in the first part of the series, the part that's been translated, but the author has said that it's intentional. Maine learning to balance her own desires with more important things is a big part of the series.
While I love every bit of Bookworm, the first part (there are 5) is probably the least representative of the series as a whole. This story goes places you would not expect.