We've looked at and compared notes on several of them. Part of it has to do with the approach to putting together a puzzle. She likes the side trays for pieces and she starts with a clear field and putting the outer edge together, bringing in pieces from the side. I usually start with everything in the middle and sometimes go for a large charismatic part that is easy to start with and build from (my last one shared on Instagram, for example, where a distinct color of sunset on one area was where I started). So she's more interested in trays with a central workspace and side panels or drawers to put other pieces and then pull them to the middle and not disturb anything when putting it away until next time. I work my puzzles on a table dedicated to this activity that has an acrylic cover to clip on at the sides of the table to keep the piece in place when I'm not there.