Nice inner gloves
I use them as mitten liners, for which they are great: when you need to do something with requires dexterity (tying laces, adjusting bindings etc.), you don't need to expose any skin to the biting cold. The quality of the fit is great -- nice and snug.
They're not tremendously warm: it would have to be a very mild day to make you want to wear them as a single layer on your hands. If they were thicker, however, they'd probably be clumsy and not be so good for gear manipulation.
My one reservation is their longevity. The stitching in one palm is unraveling already. I'm not sure if this reflects poor design, or a manufacturing defect. Most likely it was caused by my carrying skis with sharp and/or jagged edges.