This is a very cute children's clothing store that is very expensive (in my opinion). I personally, only shop the sale racks! The appeal is they bring out lines of clothing that the pieces mix and match and are super cute. However, one pair of children's jeans can run you about $36! My suggestion is to shop the back of the store or on the racks they place right in the windows. They do run specials, such as Gymbucks. In order to earn a Gymbuck you have to spend $50. That gets you one Gymbuck that is worth $25 off a future purchase of $50 (you earn a Gymbuck with every $50 purchase). They also have something called Circle of Friends / Friends of Gymboree. If you sign up with them, you will get a card or email that entitles you to 30% off your puchase.
The staff here is always helpful and very friendly. They say hello as soon as you walk in and offer assistance. They have no problem with checking in the back for items if you don't see the size you need.
Gymboree also has a website, so I would suggest looking there first, then going to the store if you like what you see online.