I got the party treats for my birthday over ten years ago. I always loved the tiny present, although it's a bit frustrating you have to tear the paper a bit to get to the bracelet kit. But, there is a box around the kit so the present can keep its form even after the kit has been taken out. I just taped the wrapping paper flaps back in place.
I like how the balloons are made of real mylar, but they are hard to store without damaging, and I'm wondering if and when they'll go flat. Mine haven't, but a friend's did (don't know if they were popped though).
The cake is precious. The bakery box is basically cardstock, so you have to be careful with it. The banner is a sticker; I would just use tape if I were ever to put it up, so I could use it again.