Has anybody here used MiniLuk? I'm looking at it for my 4.5 year old as something he can do somewhat independently while I do school with my 2nd and 4th graders. He is already reading CVC words and doing simple addition and subtraction. He won't be 5 until December, so I'm just trying to keep him busy and engaged. He seems to be teaching himself things, so I figure give him other "interesting" learning opportunities and not do anything formal for a while.
MiniLuk looks like something fun and engaging. Anybody have any experience with it?