My son loves these books so, so much. That's what the high rating is for. I enjoyed the first one quite a bit, but they all taste the same after a while. I could probably deduce which events happened in which book from the title (like, I bet this was the one with Daedalus in it!) but other than that? It's all a blur. 
 But my son builds Camp Half-Blood and the Fields of Asphodel out of Lego. He draws up battle plans for the ultimate gods vs titans conflict on Olympus. He is INTO THIS. The mythology isn't too awful, and the gods are jerkwads, just like they're suppose to be. So. Four stars, what the heck.