I used to use the equalizing plan. As far as I know, I didn't end up paying any more or less than it would have costed me without the equalizing plan. So, I wouldn't go so far as to call it a gimmick... just makes things easier to budget IMHO.
Right now though, I don't use it. I'm in a new place and I am still trying to figure out how much my utilies are. However, last month's gas and electric came out at a combined $40, and I am loving it!
