I like that. It has a confirm button when you do an action. That makes the undo much less necessary, but especially for a first game it's really nice to have an undo when you're learning how to play. I really enjoy most the games that have an undo for when you make a mistake and only have a confirm button When an action is going to reveal new information that cannot be undone.
On games I have played a few times we rarely need an undo, but when you're learning a game for the first time It's definitely frustrating not to have it.