Epic Levels - Your thoughts on 2CGaming's Epic Legacy

I've been wanting to do an epic / mythic level game for some time. I recently saw that a 3rd party publisher 2CGaming had an epic level rules book.

Has anyone here taken a look at the book - either pdf or a physical copy? If so, what are your opinions? Are the rules balanced? Also do the rules "feel epic". I'm not looking for higher stat bonuses and more damage output, but options for going on mythic adventures. (e.g. getting involved in divine struggles, fights against the great old ones with the fate of a civilization or the planes are at stake, perhaps divine apotheosis, etc.)

I'd like to hear what you think.

(https://www.drivethrurpg.com/product/204537/Epic-Legacy-Players-Guide)

https://www.amazon.com/Epic-Legacy-Core-Rulebook-Servis/dp/1946678074/ref=sr_1_1?crid=3OT02HBZSNCMA&keywords=epic+legacy+core+rulebook&qid=1561033435&s=gateway&sprefix=epic+legacy%2Caps%2C322&sr=8-1

I bought the 2CGaming hardback a while back and have read through most of it but haven't been excited enough to jump in yet. It is mostly player crunch, not much on adventure building. There were NPC enemies but can't remember if they were in the book or a pdf supplement.