I've had several good experiences with
Electrology 3000 ("E3000"), and recently used them for GRS prep. I thought it might be helpful to share, so here goes.

E3000 is an electrolysis team that specializes in trans women - all areas of the body. They're located in Lewisville, Texas, near Dallas, in a quiet, professional/medical office park.
All work is done after lidocaine injections, so except for the shots, it's painless. This includes both facial and genital clearing. The electrologists are very fast - and you can book two at a time, which cuts the session length in half!
They also zap each follicle twice, turning the probe 180 degrees in the shaft to improve effectiveness.
I flew out there a month ago for GRS clearing, and my tech was Denise, one of the owners. She already knew the desired clearing pattern for my intended GRS surgeon, Dr. Bowers, but I was kind of paranoid about it so I emailed her the diagram anyway.

Instead of renting a car like last time, I took a taxi from DFW to my hotel near their offices. It cost about $40. All told, my taxi expenses were less than car rental, and I think I'll do that again. You just have to be sure to call the taxi early enough - you might try using Uber to add some predictability.
I stayed at the Country Inn & Suites By Carlson in Lewisville. They're at
755 B E Vista Ridge Mall Drive, which is about 10 minutes from the E3000 offices. I've used them before, and it's an OK place for the money. I think I paid around $105/night.
Finding the E3000 offices was easy. The address is 105 Kathryn Dr., Suite C, Lewisville, TX 75067. The entrance is on the street side, I think the second door from the right (here's a
street view). There was plenty of parking on the right, and it was only a few steps to the office door.
When you enter, there is a vestibule that ends in a "T", and E3000 is the office on the right. On the left is a housekeeping service office which had its door closed the whole time. The E3000 waiting room is comfy, with big overstuffed chairs, and is not visible from the street.
Clearings are done in reclining chairs like you would find in a doctors or dentists office, with the familiar light above on a swing arm. The chair is fully adjustable, which is great since you will be lying there awhile. I usually ask for a little pillow behind my neck as well. On the not moving for awhile thing - don't forget to visit the girls room before the session starts!
Denise turned down the room lighting, and even with the light she used, it was very pleasant. I think she had Pandora going for background music. Denise is really sweet and we just talked about family stuff and whatever came up during the whole session.
This was my first GRS clearing using Dr. Bower's pattern, and I thought it would take four hours. Denise completed it in just two - she is so fast it's ridiculous. I had no pain at any time during the procedure!

When we were done I made the next 2 appointments (6 weeks apart) because they get booked up months in advance. Since most recommendations are to do 4-6 clearings, it's important to keep the appointments on track.
So that's pretty much it. I hope someone finds this helpful, and I'm happy to answer questions...