It's an intriguing expansion, with lots of potential and challenge.

The two biggest cons for me were:

(a) the battles were too fast paced: the Persians would often melt on meeting my phalanx line, insta-routing.
(b) you have to exterminate to keep your head above water (felt like Timurlane, not Alexander).

I created a mini-mod to tweak these two things:

https://forums.totalwar.org/vb/showp...57&postcount=1

It only changes the text files, and only in very limited ways, so if you dislike (a) and (b), you might like it.