I'm a proponent of them. They help separate out atomic commits ("I'm writing the feature here... I'm doing a refactor there"). They also serve for being able to quickly identify where I need to look in the story I told myself for "what did I do there?"

While the goals that it is designed to get people to follow is something that I've preferred in my own commits in the past, this gives a structure to them that helps identify when there's too much in a commit for it to be reasonably reviewed in isolation.