I don't like infinite scrolls. Are we some sort of dumb idiots to keep trying to go to the bottom of the page. I usually want the top 20 search results for my search. I prefer advance filters to ensure the item I want is at the top of the list. Infinite scroll is annoying and reflects the intelligence level of people using the product. Why should I ever want to pick an item not in the top 5?
For content, it makes some sense. But, only some. Infinite scroll does not play well with SEO. For SEO, content sites still have to do a paged implementation.