I bought three of these tires for commuting. They've all performed decently as far as riding, etc, but their main drawback is that they have cracked with age.
I wasn't storing these in the sun or anything, nice cool dark garages and basements. The cracking started early on the sidewalls, and now it's spread across the whole rolling surface. This is the kind of cracking I'd would expect to see on a tire that was three times older or had been kept in the sun for a long time. I ride a lot, so on the first two I wore out the tread out before the cracking became severe, but on this last one I'm going to take it off once I get a replacement.
Also, not an issue for most people, but this is not a good tire if you use a sidewall dynamo. The sidewall texture doesn't really provide enough friction for reliable dynamo use, especially in any rain.