I used the Gymboree bucks to purchase some pink leggings(18 months) among other things.
They were too small so I went to exchange them for one size bigger (24 months) however they didn't have any. So I tried to get a refund, they told me that I would only get 3 dollars back instead of the 12 since I used gymbucks.

So I found a green color but they told me no because the ones I bought were from the winter collection and the green ones were for spring collection.

So I found the EXACT same pink leggings in a even bigger size (5 yr) in the same color and same winter collection and same price. However they still told me no because now it's from the kids section instead of the toddler section.

Gymbucks sounded like a good deal but I found out that it's not worth the hassle. Especially if you were to use it to buy a gift for someone, they would only get pennies if they returned it and even if they tried to exchange it for something else they would have an extremely difficult time.

Now I don't shop there anymore. I kept the leggings and gave it to someone else instead.