Litespeed ESI review, is it really useful?

This video is review how Litespeed ESI works and tests claim "ESI lets you “punch holes” in a page, and then fill those holes with content that may be cached privately, cached publicly with its own TTL, or not cached at all"

[DaveSmithSocial]

interesting video. I couldn't get my shortcodes working with esi, every time i put it in the shortcode, it essentially broke it. am I missing something?