I'm using Falkens at the mo and they're fine but I would not say they are tested to the max. I also had Acceleras on a Freelander I had and they were spot on, someone told me they are the same company as Vreds but not sure if this is true.
If I've not heard of them I don't use them, I'll always go for the price as a guide and go for example the £80-90 range as apposed to the £120 plus or sub £60 mark so basically middle of the road.
Lots of comments on part worns above and must admit I've bought them a couple of times with no hassles, at the end of the day when you buy a 2nd hand car you buy 2nd hand tyres, I'm fairly sure not many people change a perfectly good set of tyres every time they buy a 2nd hand car????
I've always gone for the German imports as apparently they have to change tyres every year over there it's the law????