Its a fun product to do with your kids. Even adults like it. The extra actual cards are fun with a few numbered ones in blue are an added bonus.
The only down side is the cost of the stickers. You buy a 50 pack and the first one fills a little over half the spots. The second one has many doubles but still you get to 75% filled. Then you are limited on the extra stickers you can get to fill your book. I'll sell my extra on Ebay for those who need them at a good price. I hope others do the same.
But a fun book!