Nothing really - it's nice that I can use so many of our own custom controls instead of using something like jquery UI or bootstrap date picker (which do not have great skins). Our application has thousands of users across hundreds of different countries with varying abilities to deal in text/numbers well enough to handle dates and times correctly. We don't need an interface where people are looking at their phone while trying to find things they're searching over what looks more as some sort of table than anything else because this does exactly just what we want! It's easy to use, has great support for sorting, filtering, paging, etc. Easy to customize your experience using CSS, JS or even React components. There are also some limitations when it comes to loading large datasets into the grid. The UI could be improved as well. I was able to solve my problem of displaying all the data from an API in one page without having to load the whole dataset at once. Also, this allowed me to show more data per screen, which made the user experience much better.