Yes, I have used apliance repair paint(s). First off, make sure you prepare the surface --- file down any rough edges to make it as flat/even as possible or you pretty much may as well not bother.
Keep the paint as even as you can: if there's any texture or 'grain' to your surface, mimic that. If it's smooth, make long, careful brush strokes.
Even then, you may find the 'patch' too noticable. Although it's best not to judge right away. Paint it, take a good look for potential missed bits, then exit the kitchen and do something else. It's only when you come back in, not concentrating on the chip, that you'll know if you can be happpy with the job.
Should you decide the patch is too obvious, they also make a very effective spray-on appliance enamel (sp?) that would blend the entire side where the chip is. I've used this on older appliances and it gives a nice, even finish. Obviously, mask off everything within a good 12" as spray paints tend to, well, spray. AND wear goggles and a mask yourself. (No, no, not from halloween, pretty much a rag around your mouth and nose.) Try to avoid breathing while you spray. You don't want to know how pervasive this stuff is.
Best of luck!