Bought it as a present for a friend's boy (10 ish), with some apprehension - will he really want this for a birthday present? As it turned out, it proved to be the right thing to buy - he absolutely loves it and is spending a lot of time on it. Purpose served. Obviously, it feels more like 'fun' than like 'learning', which says something about the quality of the game.
Impressively fast delivery from Amazon market place. Ordered on a Tuesday on free standard delivery, keeping fingers crossed for a party planned for Saturday. It got delivered on Thursday - well before I would have started worrying about it.