We used it 2 years ago, when they didn't have the Cool History option too. We just did the coloring pages, so the kids had something to do while they were listening. They really enjoyed that.
After a year off, we're returning to BP this year, and I ordered the Cool History. I really, really like it. It's a good way to reinforce what they've heard by filling in blanks/answering quesitons. I was not impressed with the Craft booklet for 1850-2000. We'll do very few of them, and I could've come up with those ideas on my own. I do like their Maps, too, with lists of places to label.
You really could have plenty to do with just the guide and reading, though. The other items are completely optional in my opinion, based on what extras you want.
Hope that helps!