We've been using it for a couple months. It's pretty much open and go. Each days lesson literally takes like 5 minutes. There are only 4 lessons per week, so if we miss a day or two, it's pretty easy to catch up. After years of grammar work books and almost no retention, I am really enjoying the ease of Fix-It. Since we are using it along with IEW SICC-A, I feel they have really been retaining a lot better than before.