I am so happy I bought the bundle of both Big Size and Regular (Mini) Sets. They arrived quickly and are great quality as well as just happen to match the current set he got as a gift last Christmas from the store. I got them to add to my 3 year olds current collection for his upcoming 4th birthday and I know that he will spend hours creating new buildings with these added to it!
Son is very happy, he thinks they're perfect. I think that magnets are a little weak and I'm not sure if a bigger structure can be built. Very fast shipping and very well packed