Well made products. I initially sought these out after admiring the strength of the knit on a friend. She let me know that she had worn her pair for two seasons without a snag or a sag. I have a couple of pairs and they're definitely the ones I'm reaching for time and time again as the weather gets cooler.
Pay attention to the sizing. I am a medium in most brands of tights, but I take a large in Swedish to accommodate my height. I'm slender though, so I feel like the large is a bit big, the medium a bit small. I prefer the large for comfort.