It's a little messy
The thinner tip works fine, but the thicker one spills little drops of ink on your hand everytime you open or close the cap. Apart from being a little messy to work with, it fulfills the job with no problem.
You just have to pay attention to the type of paper that you're using - cardstock works just wonderfully, but on thicker papers it will be absorbed way to quickly and won't keep the embossing powder on its place.