DIY Paint Jobs
Harbor Freight's purple gun (I assume you mean #43430) is a great gun to start with. I have a friend that's used it several times and he is turning out "award-winning" paint jobs. Of course, like everyone has said, its all in the prep work - 90% prep + 10% paint.
Here is a link to my first paint job. Roadrunner project
I couldn't afford to have my car painted professionally. I bought a harbor freight purple gun and a 60 gallon air compressor. Read all I could on how to paint a car. As mentioned above it is 90% prep.
The final results
Harbor Freight's purple gun (I assume you mean #43430) is a great gun to start with. I have a friend that's used it several times and he is turning out "award-winning" paint jobs. Of course, like everyone has said, its all in the prep work - 90% prep + 10% paint.