If you've never taken one before, it helps to know what the process actually looks like from start to finish, rather than guessing. Here's the full walkthrough, from registering to getting your certificate.
The course requires 5 hours of study time, the minimum allowed under Texas law, and you don't have to finish it in one sitting. Plenty of students spread it across a few days in shorter sessions; others complete it in one afternoon. Either way works, since your progress is saved automatically between sessions.
Just a device with internet access and a way to receive email for your certificate. There's nothing to install, and no special software or equipment required.
If you want a fuller picture of what makes the experience straightforward, no final exam, responsive support, and a 5-star rating, our best defensive driving course page breaks down exactly what sets it apart.