These are a great size and personally I enjoy these more than the wider models. The reason is that If you want to place multiple units side by side the slim units line up flush. The trim and top is square. The trim and top also make up the widest point of the slim unit. If you try to use the larger models they have routered/rounded edges on the top and don't line up correctly. If you want something that starts small but is beautifully expandable I strongly suggest this unit.