As an avid home cook I am constantly on the lookout for things that make my life easier in the kitchen. For years I've been using the thin, plastic cutting mats. The issue with them is that they are hard to clean and they warp over time. They are also hard to store. 

This set is excellent in a couple ways. First, I keep them right on the counter where I do my cutting next to the sink. Second the caddy they store in is great because you can just pop them back in there even when they're wet. 

The cons are that they are a bit too small in my opinion and because they are rigid it is harder to scoop things into your bowl/pan, etc. 

Overall, though, it's a great item.