I think this was only meant to celebrate the live action adaptation, so I didn't expect anything of value here. It's definitely a good read but think of it as nothing but a supplementary piece to the original manga, you'll be immensely disappointed otherwise.
I started with the netflix series but I honestly think the manga is still way better. I didn't really like Kento Yamazaki's portrayal of Alice that much. Both are still worth reading/watching though.
I left very unsatisfied. By that I do not mean the ending is bad, it's just a shame that so much of the world hasn't been expanded in the manga. It was introduced magnificently but in the end not much was touched. Man, if only that remake is coming out.