pros:

• Nice resource for backgrounds for those who did not know about the resources already (they are quite well knowntbh)
• Really nice website design

cons:

• limited examples, probably need to visit the linked sites to get assets for a real project. Might never need to return to this showcase site.
• would like to see more customisation for the 'Gradient Topography'
• seems like it might just be an SEO/Traffic driver