My wonderfully sweet sister has offered to make my wedding cake. She wouldn't do anything fancy, probably a deconstructed cake with three seperate "tiers" on stands of different heights. She also wouldn't do the fondant, but would rather frost it and roll the sides in nuts to cover up the lack of smoothness. My fiance has said that he would rather see her lopsided cake than pay $500+ on a professional cake.
Should I let her?