I've always said, if the house was on fire and I could only take two cake decorating items, I would take my KitchenAid mixer and my AGBAY leveler. LOVE that thing. I don't have the double bladed one. I have the single blade with the extra blade I can put on in place of the main blade to cut styrofoam dummies with.
Just how I feel. I spent years re-leveling cakes after using Wilton. My husband bought me the Agbay last year for my birthday. I think he was tired of the four letter words coming out of my mouth - LOL. Anyway, I love my Agbay. I will have to look into another blade for dummies.