I've been using the Bullet Journal for a month or two now. I like the system.
I'm using a graph lined composition book from Staples for my actual journal. I use the note and task boxes. If I complete a task, I check the box. If I move the task to the next day or later, I put a right pointing arrow in the box. I don't really use the event marks. A note mark is just as easy.
I've been sick for a couple of weeks, or this update would have been published sooner.