I have RBI's and melamine racks that I've built. I really like them both. My down side to the RBI's is the 32qt's only come 4 high, and the 41qt's 3 high where as the melamine racks I can build them how ever high that I choose, And for a fraction of the cost. IMO I think Rich has about the best price shipped out the door and his turn around time is incredible. All of my racks use the iris tubs being they are completely flat on the bottom and each corner as a small foot so they dont sit directly on the heat tape...Hope this helps.