The only thing that bothers me about Time Travel and Star Trek is the sloppy writing that wraps everything up by the end of the arc.

However, Enterprise and Agent Daniels is an exception. I enjoyed those episodes.

Lets just not talk about how The Holodeck has ruined Star Trek by finding ways to avoid advancing a story and creating terrible bottle episodes. Looking at you Enterprise season finally. Easily the worst episode of the show if not the universe.