I purchased these gloves and have used them on 30-40 degree temperature rides in central Kentucky. They were warm but unfortunately my hands get very sweaty in them. As such I have switched to a more breathable pair of gloves. Durability has been excellent thus far.
I bought these because my hands will sting beginning in the mid-30s, say, in a rain/snow mix. Because I commute, I may go to work with it dry and in the upper 30s and come home with it pouring and the temp around freezing.
The mfr's specified temp range is accurate. Basically, they don't work well below 40's and in dry weather I'd use something else. I've ridden in rain, some heavy, a few times and they do keep my hands dry. Even though they're not warm enough near freezing, they have stopped the stinging. So, it seems like a win.
Only other comment is to buy one size larger than you'd normally wear. Others have commented on the touchscreen issue.
It is a warm glove without the bulk. The Diluvio C glove keeps the hands warm in the 40's. Several people in my club have purchased the glove and really like them. Price is good and the glove is great.
I bought these for Mt .Biking on coldwet rides, the fit is good however the seam that runs down the thumb is in a bad spot rubbing on the inside of thumb. They may be more comfortable for road riding given the different hand position.
I gave these gloves to my husband for Christmas this year and he was so excited to get them. He rides his bike all year and in Pa, that means all kinds of weather. Hes used them and said that they are perfect!