I found myself riding more gravel than pavement on my new touring bike, so I swapped the slicks it came with for these. These are grippy in light to moderate gravel, and don't squirm on pavement, and roll smooth and fast. For rough terrain, I run 650b x 47 knobbies, but for all else, I use these. Not too expensive, either. No complaints.
The tire *could* be fantastic. Great tread, fast rolling and just enough traction for light-duty gravel and single track. The tire measures 35mm so it's dead-on there, but it's a low volume 35mm. Compared to the Donnelly MXP, which is typically my go-to tire for mixed terrain and CX races, this tire looks anemic. The MXP is just a larger volume tire without much additional width (maybe 1-2mm). That extra volume is pretty important to me since I'll often jump on some rocky single track for CX training (or just because it's fun). I won't try that with these tires.