I have the warmnsafe liners in addition to two other pairs of heated gloves. I generally like the liners. They use less wattage and the heat they provide is pretty good. For me it's a little bit too much heat on the back of my hand in comparison to the palm or fingers. So if the heat was more evenly dispersed I would be really happy with them.
One thing to note is that although they are pretty thin, I can't wear them under my preferred street riding gloves which are Dainese and very similar in design and fit to yours, because the Dainese gloves fit me just right (snug). I have other gloves with less protection and the liners fit great under those.
Orange Wee Member #420