This is a promising start to a world that I'm interested in exploring!
The selling point for me, outside of it being free, was the Ancient Greek mythology inspiration for this setting. As someone who has played TTRPG's for over a decade now, I am well versed in how difficult it can be to draw new players into a setting with zero ties to real life. This book was an easy read and most importantly, it was easy to absorb. I've seen lots of settings that get a little too full of their own product and their books start to make as much sense as IKEA instructions. I like that there were nine deities and not forty. This setting seems to be very DM friendly with simple to understand (but left open for personal expansion if that's your thing) lore, flavor, and names.
My only critique of the setting are the two added races. Their base movement speed is a little too high in my opinion. An additional 10 feet for satrys seems odd to me, but that's just me. I think I'll be replacing centaurs with orcs for when I run my campaign in this setting in order to appease my players, but that honestly seems very easy to do.
I am very much going to purchase this setting in May, I think that I saw it releases in May. I think that the maps are beautiful and functional as well. Please include maps of all the major settlements in the full release. I swear that every setting I look into that only has one or two city maps is hard for me get my players into because they want to see the map, and I feel that it's fair for them to have one so they can explore the city without having to stop every two seconds to ask me what direction is something in or if there is a .... shop around here. If I have to find maps myself then there is a clear difference in look, feel, and the quality of the game suffers. If I may also make a small request; Please include names for things like shops and NPC's. I love reading that stuff and having quick reference for my table when my party hits a city. That may just be me, but I love having those details.