After the trial I bought this game. It's versatile with a variety of backgrounds and tiles, (two kinds of numbers, cards and colored bubbles). There are 6 stages of game play, from easy to very hard. (I struggle with level 4). What I really like best is the fact that you can place a number of possibilities in blank squares. This helps a lot in problem solving. For example, I know that this square is either a 7 or a 4; or, a red bubble or a blue one. You can also print out puzzles if you want to take your game, when you travel. Every puzzle is different. The only thing that would make this game better is if it had animals or food items; or, other specialty items to mix it up a bit. Would love to see a second edition of this game with a variety of different items to play with. I did not mark the "skill level", because with 6 different levels....there is a game here for everyone.
Of all the Big Fish games I own, this one is an everyday game for me. I LOVE THIS GAME. Once I have gone through all 6 game levels, I change my name on the game board and repeat all 6 levels with another name. I'm only competing against myself, and trying to beat my previous time. This is a typical Einstein game. If you are not familiar with an Einstein game, then you will soon find this game truly addictive. I only wish I had ten more just like it!
Con: The only down side to this game is the music. It tends to be rather repetitive. I play with the sound off.
I highly recommend this game (and others like it), for any age group.