Just got my first CSG slab in hand (Herbert Optic Holo CSG 9) - my goodness. These slabs are awesome. Easily takes the top spot ahead of HGA, PSA, BGS, and SGC (in that order). Super clear and compact. I agree the label doesn't look big at all in hand - there's just way less plastic space overall so you notice the card and size of the entire slab (smaller than PSA) way more than the label.
If you want to see my actual card - they have photos of it on the cert page (which has to be one of the biggest selling points):
https://www.csgcards.com/certlookup/1001489002/