I have two titanium silver BMW's, one is a 1999 328is and the other a 2001 x5. Over the past few years I have had paint work and paintless dent removal done, and PDR is the way to go. In most cases, when they paint, they have to blend into the panel next to it. A good example was when I had the hood replaced on the 328IS (rust on the seem) - they had to paint both fenders and the header panel to the paint to match. Also, painting in so much more expensive. Recently, my wife parked to close to the utlity rack in the garage, when the passenger got out they hit the rack and over it tumble, leaving behind 6 good size dents on the passenger fender, roof and quarter panel. The biggest dent was about the size of a lemon on the top of the fender. I brought it to the local BMW dealer and they quoted $3000 to fix the damag. Having good success with PDR on my x5, I called Factory Finish in Natick MA., they were able to fix 99% of the damage for $300. If you stare long and hard you can find the other 1% but for the money, you can't beat it. Also, there was no worries about the paint matching, which was the problem I had when they replaced the hood - took them 3 times to get it to match - car was in the shop for 3 weeks.

Hope this helps