I have the original Gerbings heated glove, before the G 3. I will not hesitate to buy the T5 when these go t!ts up. But my original ones are still working great after 10 winters, so it may be a while and they may have yet a newer glove, maybe a T10!
I have the G 3's and find them to be very warm and comfortable. The Gauntlet is a bit tight but does loosen up with use. The sizing is big. I normally wear a medium glove but had to send these back for a small which fit much better. I considered the T5's but they were just too bulky for my taste although the gauntlet is a bit bigger, but not by much.