I tried it briefly, but it required too much thinking for me.

My neighbor stuck to it for about a month and lost 7 or 8 pounds. She quite enjoyed it. It's not really considered low carb but a food combining program. You can only eat certain foods with certain other foods and some foods (in their opinion) should not be eaten with others.
BTW, I thought there was a Somers Plan forum. Look in the main menu at 3FC. Unless it's been abandoned. Hmmmm.'
I just checked and there isn't a forum here, but perhaps there is one somewhere else on the web. Try doing a search.
I just did a search using the word "somersizing" and came up with a couple of interesting sites. One of them appears to be a forum where various people are giving their opinions, both positive and negative about this weight loss plan. The other one, which I think you might find useful appears to have an overview of the Somersizing plan, recipes and a forum. Here is the website.
http://catlady99.tripod.com/somersizing.htm
Hope this helps you.