Here in Michigan I ride a lot of dirt and gravel roads.
My first impression was how much faster and smoother they were on gravel compared to some other budget tires out there.
On pavement it was the same thing, they were sticky as a booger right out of the box, no sheen or waxy surface to wear off.
I ride quite a bit (100 to 150 miles a week) and I can already see that I'll probably go through these a lot faster than the long lived junk I used to ride on, maybe I'll need a third rear tire by October, but they're light weight and performance is so good along with the price, I don't care, I like having good stuff on my bike that makes it handle better.
If you've never used these before, it's hard for me to imagine that you could be disappointed.
These tires strike a good balance between off-road and on-road performance. Good performance in both soft and hard terrain as long as it's not too muddy. They also roll well on pavement without too much rolling resistance. I've been happy with these tires.
As tires go, I've always had good luck with Michelin (I normally ride Country Rocks on paved roads-6600 miles so far).
Bought these to replace the 10 year old off-road knobbies which were pretty worn down and lacking sufficient bite when off-roading. Choose an 2500 foot descent and overall did pretty well. I took a spill on the way down when I hit an especially nasty switchback full of sand which is why I didn't give a five star. Naturally, after I got to the bottom, I had to ride back up a paved road. Suffice to say, these tires were like riding up a mossy trail-you feel like you're pedaling through mud.
For dry dirt, these tires are fine for the most part, low price, and decent quality.
I bought a set of these for my son so he could ride single track with me when he was home from college this summer - he only had slicks on his bike for commuting. They worked great and seem to hold up quite well. I don't think they can be beat for the price.