The ease of use, the simplicity of creating products and the ability to test them before I actually make them. I have used other 3D printers but they were complicated to use and cost a lot of money. I am printing out my own products for gifts and other purposes. It allows me to create a better product for a low price. I have not found any downsides to this product. I am printing gifts for friends and family. I like that they can be customized to fit my needs! They are very easy to use once set up properly which takes maybe 10 minutes or less depending if it's been done before. There is nothing really wrong about this software at all, but there isn't anything great either (so far). It does what its supposed to do without any issues so far as of now. This program has saved me money by creating custom labels/stickers in an instant instead of having to go through multiple print shops etc..