I finished the game, all 100 levels, and I enjoyed it immensely! Some of the levels were very tricky, but the hint system, which basically shows the solution, is a big help. Having the solution in front of you, though, doesn't make it easy to complete. Some of the levels are extremely complex! Level either 93 or 94 was tricky enough that I thought I had the solution--it looked exactly like the hint showed--but I had two pieces in the wrong places and had to leave the game and come back later before I could see my error. You can't skip a level, so it was either solve it or not finish. The game gives a big "Congratulations You Won!" message at the end, which was nice; some games don't acknowledge finishing at all. I had a lot of fun!!
As a cat lover, I couldn't pass this up. Some of the cats (all adorable) are tricky to find, a few were even tricky to find with the magnifying glass, but I eventually found them all. The spot-the-difference puzzles were fairly easy, and I like that you can use the hint button there. I have finished the game and I'm ready to play it again already! Also have an adorable kitten as my wallpaper now!
After reading review after review complaining about having to click so much (like the first two Paint by Numbers games, I downloaded the demo, played for an hour and never had to "click click" like so many have complained about. I just clicked on one numbered space and swept the mouse around to pick up the rest like Paint by Numbers 3-9. I have absolutely no complaints about this game!