I looked in the feature requests and did not see this; also, don't see a "section" for suggested enhancements, so posting here...
The eraser tool circle disappears when you left click to use it. Then, if you are dragging it around to erase up close to an object, it is very hard not to "hit" the object because you can no longer see the area of effectiveness.
You can click, move, click, move, etc, but it is easier if there is a lot to erase just to drag it around.
Recommend the eraser circle remain showing when click depressed.