From 5 star to 2.....You used to be able to put pieces around the outside of the puzzle to help arrange them, instead of constantly going back and forth on the slide bar. With low piece count puzzles, it's not a problem. But with more pieces, it makes the puzzle unwieldy. Also, the increase of ads is extremely annoying. 1 at the beginning and 1 at the end, I didn't mind. But now I have so many ads, plus one's that take ages, that when a ad comes on, I shut the game down. Is that what they want?