I have had about 225 hours of electrolysis on my face. I had scaring and pitting caused from the electrolysis that made my face look like the craters of the moon. Also a crease line would form in the crevasses. As you say everyone is different and the skill (or lack thereof) of the operator does play a part, as well as the type of electrolysis being performed.
After the front of my face was fairly clear I had facial dermabrasion. This is basically taking a mechanical rotating tool and abrading off some layers of skin. This helps new skin growth that is smoother than the previous skin.
This procedure worked well for me and was a 3 hour experience walk in-walk out with local anesthetic. Bandages were required for a week after and care taken of the new pinkish skin with exposure to UV etc. The pink disappeared over about 3 months).
This procedure should not to be confused with the micro-dermabrasion procedure offered at some beauty salons, which is more of a ‘polishing’ effect. If anything its major dermabrasion. I had the procedure in Bangkok, Thailand and the cost was USD$1,000 (Dec 2009).