I find the default dired look a bit spammy, especially in narrow windows.

;; Make dired less verbose
(require 'dired-details)
(setq-default dired-details-hidden-string "--- ")
(dired-details-install)

By installing M-x package-install dired-details and using this snippet, we hide all the unnecessary ls-details.

That rare occasion where you actually need that information, you can show it with ) and hide again with (.