It takes persistence. For me, the hardest part was knowing when to transition from laser to electrolysis on the face. I was way too worried about the pain of electrolysis, which, though real, wasn't really that much worse than laser in my experience.
Once you're seeing mostly lights (blond, gray), it's time to go. I didn't get anywhere near clear until I did some regular electrolysis. I have a bunch of lights coming back now, but I've not done any maintenance for 9 or 10 months. I shave them every few weeks and I'm good to go.