GoodNotes can be limited when it comes to coloring. I wish we had a paint bucket tool to fill in areas faster, as well as a blending tool to avoid harsh lines when coloring. I often have to color for lab reports, and it's inconvenient to do that on GoodNotes. I also wish we could select things with the lasso without it dragging whatever is behind it. At times, I have to change a portion I colored, but it drags anything it overlaps with, making it difficult to select a specific area. The eraser tool can also have more sizing options. The smallest one available is still too large sometimes, and it erases things I didn't want it to.