My wife got caught in a hail storm last year with softball sized hail (yes softball, size hail) and my X5 had hundreds of small dings on the hood, roof and tops of the door panels. I went to the local Cars Collision Center here in NWI to attempt the paintless dent removal, rather than replace the panels.

Checking the suface under black light before and after it was amazing. Not a single dent was left.

I say let a professional do the work, unless you really know what you are doing...