I like that you have an option for different ways people browse, so this helps me keep track without having too many options set up! The only thing about it right now (that may not be my fault)is when someone clicks "add" multiple times from one day they do end stacking which messes with how everything looks/arranges itself etc.. So maybe make sure there's enough time between adding something once vs more than 1x per session? It works great though overall!! Great tool if used correctly :) We use smart merch as our inventory optimization system because we're looking at every aspect within each product category - whether its price point, size range ect...