No, I have the FWS. Confusing isn't it?
Dreambirdie, yes I had to make adjustments, and I'm still doing that. The Fisher Wallace people are very helpful by phone or by chat.
Everybody starts out at level 2. After 7 days I felt like maybe I was sleeping better. By day 10 I was sure, but I have a good night and then a few worse ones, so it's very non-linear. The steadiest improvement is that once I fall asleep, I stay asleep for up to 4 hours. Before, I'd fall asleep and then be up and down for an hour, and then I'd wake every hour or 2.
I started having trouble falling asleep, and they told me to use it an hour before bed. That immediately solved that problem. They said to also lower the level to 1, but at 1, nothing happened at all.
Then I figured it was time to tell them it's working in a very spotty way. They said to go to level 3 for a week, and then 4 if 3 doesn't make any differences. I'm only 2 days into that shift and have nothing to report yet.
If you're thinking about buying this machine, notice that you'll need more sponges after the 2 month trial period. That will cost $60 for 48. The sponges are extra dense, so they hold a lot of water and conduct the electricity better than anything I've tested.