My 2.5 y/o loves this! It fits perfectly in her Ikea play kitchen cabinet. We spread her splat-mat out on the floor and so far she has been using colored rice. It's the perfect size for her little hands and the whole box used as the sensory tray is small enough for her to manage with a little help. Do measure ahead of time, though, in case you are looking for something larger.
My toddler loves playing with this and gets excited when he sees it. The containers are his favorite thing right now, mine is the cute little scoop!
Knocked one star off because of the box. The play is all centered inside the box, it should be sturdy. The box is a bit thin and won’t withstand rough play. Pieces are a little small but that’s what can fit in a box that size. I do like how everything fits in there. I took some of them out because they are definitely choking hazards to mouthy babies.