We bought this after we borrowed one of them from the library and our oldest son loved it. Unfortunately, our kids have watched it maybe 3 times now and lose interest after 10 minutes; they don't ask for it. I think it's a fun and educational way to teach kids about these things, so my husband and I are bummed that they're not excited about it. Yes, Dave is kinda cheesy, but the younger kids (toddlers, preschoolers) should enjoy it. I think they'd be more into it if we had started them at age 2. My 4 and 5-year old childcare girls always ask for it, though. I guess every kid is different. Still, I think the DVD is the perfect blend of humor, excitement, and information for kids, so I'm giving it 4 stars. The price is reasonable, so you could buy 1 DVD and see what your kids think of it. Our kids actually enjoy the "There Goes a Bulldozer" and "Rescue Adventures" DVDs, if that's any help.