Really fast and easy to set up. It came assembled in the box so I was able to use it right away. Everything is adjustable so you can sit or stand to use it, as well as adjust the tilt from vertical to horizontal or something in between.
My house is quite small so it's great that this folds down to something so compact if I won't be using it; I was also surprised at how sturdy it is for something so light.
It does smell quite woody as it's new, but not enough to bother me personally.
It doesn't come with set up instructions but it's easy to figure out. If you have trouble there are videos online on how to set up a French Box Easel which are very straightforward.