I haven't even tried any puzzles with her. When they send pictures of her from daycare where they are working on those chunky peg puzzles (like the cow shape, car shape ones), she looks absolutely bored because those are easy. I should buy her some puzzles.
L's attention span isn't great, but she likes to people to play with her. So, she'll happily do puzzles if someone is willing to sit with her. She needs assistance completing 24-piece puzzles the first couple times, but can do them on her own afterwards. I helped her with a 48-piece puzzle the other day (I suggest what to look for, or hand her a piece if she gets stuck), but she's a long way from doing that one on her own.
M has one Sofia one that's like 20 pieces and she can put together like 2 pieces of her dress or her face but that's about it! Usually she says I need help and makes me do the whole thing.