I love the space saving capability of this design, and the ease of access with the tins (just turn for shake or pour capability). HOWEVER - the tins are not air-tight, and the plastic cover on the tins is reactive to some spices. My cumin became encased in a plastiky mess, and the salt becomes a salt block within days. Also, due that the spices are stored on their sides, there's constantly a mess of spice-jumble on the counter under the spice tins. I still use the tins for spices that I use up really quickly - oregano, marjoram, etc.... - but have to keep a separate stock of anything that reacts with moisture and the plastic tops (trial and error). I would look into other storage options if you're not tight on space.