The Gerbing's heated clothing is excellent. I have a jacket and heated gloves, however, I don't plug the gloves in anymore even when the temp gets in the 20's. Heated grips and the Gerbing's gloves (without the added hassle of more teathering wires) are an excellent combination. My opinion is that riding needs to be comfortable and the heated gear is a must. I wear the jacket when the temp gets below 60. All my bikes have the controller (GS, Goldwing, Concours) on them to regulate the amount of heat, except my CBR1000rr (simply an on/off switch that I plug into the battery tender wire).
I found that an on/off only switch was not adequate as I was constantly turning it on and off. Too hot then too cold. Comfort can be obtained with a Good pair of gloves, heated grips, and a heated jacket into the high 20's. Yes, sometimes my feet get a little cold, but I don't want any more cords to plug in and deal with.
For the price, reliability, and simplicity I just cannot understand why people tolerate being cold when riding.
My riding season has extended to year round.