Just played Pick & Dig 2 and searched for this one. They are both very enjoyable and playable... like people below have said, not too easy not too hard :)
Fun and challenging
I really enjoyed playing this. Its just the right difficulty.
I really enjoyed this.
It's challenging enough to be rewarding, but not so difficult that you tear your hair out. Nice visuals, too!
really loved this game!!!! Puzzles kept me entertained for a couple of hours at work lol