Very warm for what they are. I've worn them on slower mtb days (not windy) down to about 35F. And slower commuting days to about 40F.
Grippers are nice.
Touchscreens work fine. I've even started using these gloves on a day to day basis for non riding stuff.
I have not used the gloves extensively. I have worn them twice on road bike rides. In my experience these gloves are of good thermal quality. The fit and feel of the material is good as well. However, when it comes to grip, I did not feel as confident as when I use my regular fingerless cycling gloves. I am not suggesting one would be totally unsecure, though due to the nature of the material you will feel some movements of the hands inside the gloves. Personally, I would not use them mountain biking. Otherwise, they are of good value.
I use the Giro wool glove inside my bar mitts when riding in below freezing temperatures. The gloves work on my Garmin Edge 1030 screens and keep my hands warm enough when locking up the bike at rest stops. Sweat is not much of an issue because of the merino wool.
I bought these gloves in neon for visibility when signaling on my commute in downtown Boston. They are very comfortable on the bike. I have worn them on short (2 mile) rides at 25 degrees and have been ok - wouldn't go much longer though. The wool quality is high and the touch screen compatible feature does work. All in all these are a nice 2 season springfall glove.