As a veteran of many subscription boxes for kids, the uniqueness of the Build Box is the community that the CrunchLabs team created around them. The fun starts when the box arrives, but does not end when the build is done! The kids enjoy playing together with the built items, discussing the challenges that Mark shares, watching together the videos, etc. The engineering mind set "takes over" their day to day, and not just one hour a month. Additionally, the boxes are really well made, thought though and challenging enough (but doable). CrunchLabs customer service is amazing. I highly recommend getting a subscription today!