Red Stallionwrote a review of Pearl Izumi Thermal Conductive Gloves on June 8, 2016
Familiarity: I've put it through the wringer
Fit: True to size
I use these on my year-round commutes to work. The gloves are very comfortable, pretty grippy, and have the added benefit of being reflective. The snot thumb is also super awesome and really helpful when rockets go awry. I haven't used them in the rain on a cold day, but they hold up well on mild ones (not water resistant, but have almost a wetsuit effect to keep my hands warm enough).
The downside for me is there is not much wind resistance/moisture resistance when I really want it. Half of my ride is urban, half rural. They work well in the city, but once I hit the hills before the sun is up, the country fog and cooler temps turn my hands to icicles. My whole body can be warm, but if my hands aren't happy, I'm not going to be happy. Ultimately I would recommend the gloves, but would suggest a backup option for the extra cold or wet days. Personally, I plan to make some mitten slips out of some gortex to break out when needed (it is Seattle, after all).