This book was a slow start but once it got Achilles introduced I was captivated. And it just kept getting better and playing out every scene in my head while reading brought them to life. This was very well written and the characters were so interesting. Even after Protroclus died, he still narrated and the ending with Thetis brought me to tears. 
I finished this in a short period of time because I am a fast reader that frequently reads. But I considered this a slow read because of how long it felt. Each page you had to pay attention and digest. The language was something you also had to adjust to. In all this was a medium read.