The ticket's history is right at the top, so you can immediately see everything that has been done. It's even color-coded - the blue is the asker, while the orange is the agent's response. It also displays who the response was emailed to.
On the right side there's a gear icon that hides additional ticket options, to edit the ticket or merge it with another (useful if there are duplicate tickets).
Add or edit tags as you wish, to help you easily find related tickets later.