As someone who was really into lego when I was little, these sets caught my eye. They're exactly the right size and price point to be tempting to a prodigal lego fan and provide plenty of entertainment value in a portable box.
It's a lot of fun challenging yourself to create new inventions from only the pieces provided. If I have any criticism it's only that the instructions only give 3 builds, but I guess that's where the "creator" part comes into play. Also be warned: the intructions for all 3 models tell you to put the two 1x2 clear pieces on top of each other. Make sure you don't plan on using them for anything else because they're not going to split up easily.