Sketching in the mtr

Have to say I haven't done much sketching with my iPad while I got it for a quite long time only kinda did few concept sketches with it which are cool, but have to say compare to paper you have less control on the iPad but one great thing is you got the undo button plus you save allot of materials. Also too bad the resolution and size is limited so you cannot expect anything you have drawn to be printed on a big canvas without getting pixelated.