It is an adorable cut (and she is an adorable girl) and I think it would look very flattering and cute on you. Fun for summer
But, just in case your hair has some quirks that would make it high maintenance, check with your stylist and hear her thoughts.
Also, I am always frustrated by hair coloring maintenance, so could you get a similar effect by using platinum highlights?? Then the regrowth isn't such a drag (I know you are normally blonde, but I don't know how close/far you are from platinum).
Another also, my brunette DD once wanted to be "Gwen Stefani" blonde, and the best they could do on her hair (with FIVE hours of work) was more yellow than she intended. But I guess it gave a brunette the blonde fix she was looking for. . . I don't know if you have any red tones in your hair to alter the results.