I have been using Goodnotes on my Mac for some time now, but I have found that there are often bugs that prevent me from using it efficiently. For example, I can't use my mouse to scroll up and down or type anything. Instead, I have to use the keyboard buttons to scroll, which can be frustrating. While closing and reopening the windows usually fixes the problem, it reoccurs frequently within a short period of time, sometimes as little as five minutes. Overall, I think that while Goodnotes is a useful app, it could greatly benefit from some bug fixes and improvements on the Mac version.