As cupcakerys go, I really like Gigi's.
I agree with many other comments that point out the MASS amounts of frosting on each cupcake, I usually only use 1/3 of what is on them. However, if you don't want to be wasteful you can definitely put some frosting on some cookies or something you have around the house.
I like the rotating menu, it keeps things interesting, and the menu in general is really fun. I'd have to say my favorite is their Wedding Cake - although in theory it is simply white cake with white frosting (which I would never have chosen if someone hadn't told me to try), but somehow it tastes INCREDIBLE!
If you become a Facebook fan, you often get special deals, which I love.
The place definitely attracts the upper middle-class soccer mom crowd, the prices make it a little more uppity than it should be, but it works really well as a special treat to have once and awhile.