I have observed on many darkside threads that the first impression a new darksider expresses is how the tire is in slow maneuvers, as well as curvy roads. They usually also state that once they got used to it, adjusted pressure etc it became just fine.
For me, the slow speed maneuvering, even though quite manageable, and the curvys, again, manageable, were just that. Manageable. I am not a dark side "nay-sayer" as has been stated. I was very careful to state several times that this was just my opinion, and that's all it is. For me, part of the joy of riding is getting the very most out of my bike. I don't like having to "manage" it around corners, I'd rather press the bars and have it swoop into the corners following exactly where I have my eyes planted.
Everyone has their opinion about a darkside tire. I ride with folks who have them. I never try to convince them not to. It's a personal choice and I am not one to tell others what to do with their ride. But if I'm asked my opinion, I will give it, and not without a couple of years of experience behind it.
Oh, and I have personally sat in Fred Flintstones car. Look it up, it does exist.