Play silks: mixed review. Glad we have them sometimes (and they don't take up much space): we use them for make believe sometimes, with our dress up sometimes, we wrap gifts in them. Still, they don't use them as much as we hoped (and still hope?).
Wooden Curvy Board: amazing reception--used daily. For something so simple, it has been very physical and has inspired very interesting games. We like to use it to just to work our legs/hips. Worth the money!
Wooden Kitchen Set. We finally parted with it so some other family could enjoy it. They just didn't get into the whole playing house/food thing. I'm not sure why. As kids we played all that a lot. But they also have ignored their lightbright which Eric and I used endlessly as children.
Doll House and Castle: used some. I can't get a sense of this one 100%. The castle is a Melissa and Doug piece, and they use our peg doll princesses from etsy and other figures (mostly wooden, some plastic like My Little Ponies) there and in the Melissa and Doug dollhouse. I would rather (and E also says she'd prefer) a more empty/open dollhouse that you have to define each time you play. Here's an example of an improvement if we ever replaced it (alongside the one we actually have). Related here are wooden figures like Ostheimer toys--those are loved, held, smelled, cherished etc. when playing.
Puzzles and Games: heavy rotation! One discovery as a parent is cooperative games like Wildcraft, Yoga Garden and Orchard. We LOVE those. Any games are used here though--even competitive ones. Z does advanced puzzles--the girls and Eric are really into those. Family games are very important time to us and very sought after. Family games don't have to be traditional either. We play art passing/doodle games and make up obstacle courses inside even with music. Those things seem to mean soooo much to our kids.