"Me, too" is frowned upon because it doesn't add much of substance to the conversation, yet feels like a contribution. Adding specifics about why you like it, providing relevant details, not only conveys your recommendation, but also is a beneficial contribution to the discussion.

Let me add then that it is less of a feel good book and more of a practical book.

It focuses on things you can do something about like getting started in time.

At the same time it is easy to read so I actually finished it.