At roughly 4 months per volume I think it is being published at a pretty decent rate.
I have decent enough memory that it is difficult for me to reread something and still enjoy it, usually I just check out the last little bit of something and all the memory would flow in.
This is especially true when it comes to any sort of "puzzle" integrated into the story (ie: how Raishin defeated cannibal candy or komurasaki's volume).
Maybe when I get older I will be more forgetful - allowing me to enjoy the same book over and over and over
My greatest weakness would be my weak Japanese (of which I understand ~20%). I rely on the Chinese translations (of which I can understand ~90%) but translation projects tend to stall a lot/get dropped after the first few volumes (still better than the j->e projects though).
Even though this series can be considered to be moving at snail pace due to the dilution of multiple heroines, I still prefer LNs a lot more than monthly mangas. Let's hope it does not take
itachi Marcus 10 years to die.