I would not buy this product.
We had to replace our KWT4154 after only 10 years. We bought a 6321 on recommendation and found this product is very limited on space and size of bottles. We have to be very careful as when you pull a shelf out it can drag the bottle below out also and can end up broken on the floor. With our previous model, we could store various sizes of bottles but not with this model and therefore are quite dissapointed with this model given the cost of purchase. Just want my old 4154 back!!!!