I like how it's open source, so you can use it without paying for anything. It is very easy to set up, and the documentation is complete and well written. The language itself isn't that intuitive, but there are plenty of tutorials online. There really is nothing about this product that I dislike. I think it does everything it's advertised to do.
It's not too difficult for beginners to learn, but it also has advanced features for more experienced users. This is great software if you're lookingβ¦