Personally I thought going through the videos helped me, and I don't think I could have gotten through the exams just using NINJA. There are a lot of people though that find the videos to be pointless and not helpful. And they take a lot of time so they're only worth it if they're helpful.
If a different study program is an option for you, take a look online for some trials and see what program might work better for you.
My problem with Becker (and this didn't occur to me until after I had given up on my first attempt at these exams) was that I spent too much time trying to make sure I highlighted, underlined, etc. everything they told me to highlight, underline, etc. I wasn't learning the material because I was too focused on making sure I did everything they told me too.
I used CPAExcel, and what I liked about it was the lectures were “bite-sized”. I could pick and choose small topics and really set my own schedule. If I needed to go over something again, the lectures were small enough I could focus on that one small topic for a bit.
But as I mentioned earlier, adding Ninja Notes and Audio were what did it for me. I may not have added 10 points, but they helped me pass.