Schwalbe tires are as good as it gets, but the Schwalbe Pro One is the best tire I've ridden so far. I have the 700x30C on my Calfee Dragonfly 44 Pro, and it rides extremely well. 2500 miles and it still has life left, even though I run it at reduced pressure. No flats so far, which is rare for me riding in the Gig Harbor Peninsula area. It is a plus that Westernbikeworks (Biketiresdirect has same) prices are very good, and their shipping is quick and efficient.
So far this has been a good tire I have about 200 mil on them, I set them up tubeless with Enduro orange seal on Zipp 303 firecreat rim which are hookless rims with no tools! This was the easiest tire installation I've ever done. In pass I ran Continental Grand Prix 5000 hooked rims and they were a pain in the butt to get them off if you got flat.I can't tell how they'll wear in the long term I will do follow up review ,so far very good
Lower drag (gained 1 mph) compared to knobbies, and one of only few tires that fit on my existing rims. Worked well for driving on roads and packed gravel for a cross-country trek over the pass. Great for commuting to work as well.
I use these tires on my Sage Titanium Barlow gravel bike in a mix of road, fire road, and single track. The set-up really nicely on a pair of Enve 4.5 AR rims and can run low pressures for days when one might be inclined to ride something a bit more technical. I ran them on Lolo Pass with no issues last month and use them regularly on fire roads throughout the Portland Metro area. I've previously run the 32mm version (which lasted all winter and well into the summer in really nasty conditions). Now, I'm running the 35mm version.