If you are going to use the staples, make sure you get stainless steel staples. The ones that come with the kit are plain steel.
That being said, it's not all that difficult to DIY. First step is to clean the piece you are installing the weather stripping. Now would be a good time to repaint as needed. I used a combination of spring clamps and binder clips to lock the weatherstrip in place. Check that it doesn't overhang the edge of the piece. I had to do some minor work with a file to trim the stainless trim that was a tad too long. Use the drill provided in the weatherstripping kit to locate the staples in the factory holes in the quarter panel or upper door panel. It's easy on the interior side, the exterior side takes some patience to line things up. Good luck.