I've been trying to learn over time with some patch jobs at the house . . . some larger than others. I've gotten pretty good at the drywall patch part. The really hard part is trying to get the texturing good enough to match to where it look good (or passable). I've gotten better at it though the last few times. But . . . I wouldn't be comfortable doing it at someone else's place. If I jack up my stuff I just have to be mad at myself and redo it til it's passable.