Liked how forgiving colliders were. Also, when ball could fall into the hole even when moving with the hole, it creates interesting moments, where you not only move to the safe spot, but you also must maneuver around balls it the way,
Speaking of a safe spot, not being able to put the hole near edges is really good idea. We all watched the DVD hitting the corner to know how rate hitting it is. And lastly when there are so many balls at once you can only guess which spot is safe and which not. So, it creates another nice challenge for the player.