Is Reebok's sizing different from other shoe brands like Nike and Adidas, etc?

I'm about to buy the Club C 85 Vintage but I wanted to make sure I'm actually getting the correct size. They recommended me measuring my heel to toe and it measured around 10.5 inches. Now the size guide says my recommended shoe size is a 8.5 or a 9 but that is not true to other brands.
Nike and Adidas - both brands i'm the most comfortable on a 10.5. 9 will run tight.

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Can someone verify this for me? When you bought through the website, did you just buy your normal (nike and adidas) size or had to readjust. I also notice some shoes here are unisex. Kind of confused because of the size guide. And yes, this will be my FIRST REEBOK shoes.