If you are very used to draw on paper and have trouble with the tablet, you can put a piece of paper on your tablet and the texture and feel will make it a lot easier for you. Of course your tablet pen nib will also gets worn out much faster.
Drawing on digital medium is great. While blending might not be as easy as painting with real oil, digital msdium offers so much more precision. Plus, you can "undo" your mistakes. Quite often I have seen myself looking for my history pallette to undo something while painting on a canvas, only to realize that "wait, I'm not in Photoshop. Darn it!"
However, I must admit that there are some things digital medium cannot replace. Sometimes I paint with a lot of anger, and a lot smashing and stabbing takes place. With a Wacom Tablet, I really can't afford to do that. Too expensive.