I have the new T5's and don't like them. They do not get hot - you can turn them to high and you'll never say "ouch". The Gerbing jacket liner is awesome and is a great winter companion under my AST jacket, but I find the gloves very thick and hard to do minor things while wearing - for example, I have the digital, dual Gerbing controller and with the T5 gloves it is nearly impossible to feel the on/off action of the knob. I can wear my other gloves with the heated grips and find I like the feel much better. The downside to the grips having heat - you have to hold them tightly and keep a good grip on the full surface to get the transfer of heat. Also, I'm sure mine are like all bikes - the right side/throttle gets s lot warmer than the left due to rubber thickness. The T5's will work even in a relaxed position.
Now these are promised to be waterproof, so when it gets "cold and wet", these T5's may go up in value and be appreciated. I've had them on down to 25 degrees, but it was a 30 minute ride and none of the wet stuff.
Gordon