I have used the three compartment draining dish for home use and travel for ages but wanted something to keep any opened shamp/cond/soap bars in that I was not currently using. As the four compartment one is now cheaper than the $20 original price I thought I’d give it a go, I also ordered the two slot travel one too! I’m happy with both the two and four slot, thy both secure a lot firmer than i expected, ie more water tight. I don’t plan on leaving wet bars in them, but it’s still nice to know they are leak proof just in case I’m in a rush. They are both taller than I expected, but that is just my error and they fits bars great. I stick with Kitsch shampoo and conditioner bars, but for soap I use a variety of bars due to gifts from husband and friends (they know I like my soap bars). The four compartment fits a good amount, it is worth nothing the two inner slots are bigger than the two outer by a few mill, so this helps. I’m glad I purchased them both eventually. They are handy to have for travel and storage. For travel, my preferred is the two slot for size, as I like to travel minimal with just one bag as carryon, for where ever and however long I am away for but both are suitable for travel! I tend to use the remains of my bars for travel, you know, when they tend to get really small and are not as easy to hold so I fit my shampoo and conditioner in one slot of the two compartments and my soap in the other. I don’t have anything bad to say about either. Both work great…