The Macayla sneaker in Alabaster snake leather is GORGEOUS! I got it in size 9W, and it fits perfectly.
Not much "break in" time required at all really, but DO wear a good quality thicker sock (not a thin sock) because the snake leather is a bit stiff on the top of the shoe (above your big toe) and you'll need that soft sock barrier for the first couple days until the snake skin softens up, if you wear a thin sock at first, the stiffness of the snake skin will probably hurt with every step, I know because it happened to me, but now it's fine just a couple days later.
I am so glad that I bought these shoes! They're really beautiful. Don't forget that just like with regular leather shoes, its important to periodically cleanse and condition them with a "cleanser & conditioner" spray, I use WEIMANS LEATHER CLEANER & CONDITIONER SPRAY (from Amazon), it's one of the best brands that I have found, I use it on all my leather shoes, leather handbags, leather wallets, etc. :)