The tool set is not intuitive. I have used Illustrator for nearly 25 years and Affinity Designer since its release. However, this is frustrating. There is little or misleading instruction on how to use it. The in-app help is short and incomplete. I have spent over 3 hours trying to join (union) two shapes. I appreciate you can do a lot with this app, but the learning curve is too high without proper instruction provided by the developers.