I have one, it will be on the chopping block soon to pay for WOZ, but it is a very deep game quite honestly. The theme is more family oriented and childish, but the gameplay is fast and hard. The upper PF is very difficult to complete, I haven't done it yet.
The obstructed shots are a PITA, but I find only the one leading to the mini to be a real hard one to judge.
Many small design flaws which I worked out on mine, but the depth is there in this machine... The skill shot isn't hard, but is a cool design in getting you closer to whatever remaing objectives you need.