adidasWomen's Nizza Platform Sneaker

Is this sneaker a wide toe box?

how high is the platform?

Shall I order my usual size or size down if I don't want them to look bulky on me?

I'm confused on sizing. Some are saying size down 1/2. According to the chart, it's saying go down a whole size and half. I'm normally a 7.5 or 8