I like the annotation experience on the ipad using the apple pencil. However when I try the same experience on the Surface using the Microsoft pen it is harder to use. For one, trying to navigate with your finger to scroll through the pages results in lines being drawn. I think it would be helpful to turn drawing off unless it is being used with the pen. Another thing. there is a button for the ipad to turn annotating on on the bottom right hand corner. On the surface there is not. It is easier to remove the lines on the ipad. However on the surface it is more difficult.