There a few words that can be written and the guide to the U.I. is nonexistent. If you search for a helper slide, it tells you the basics of how to write the kanji, but when selecting each kanji itself to view their stroke animation guide, sometimes it will just stop appearing. Then you have to rely on what the vague basics are of writing kanji, with out knowing about any exceptions or which line counts as closer to the center and what stroke should be started with. It gets incredibly confusing to use and breaks even more. The translation symbol stopped allowing me to use it after an ad popped up (which was after only looking at 2 kanji)
TL;DR: very glitchy, confusing UI and breaks a lot