I've owned these tights before, and was looking forward to purchasing them again.  They are very durable (difficult to run or pull, even when worn with boots with zippers), warm enough to wear in cool weather, and the reversible option is great.  I wore them recently as black tights, and the brown side did not show through at all, even when stretched and in bright sunlight.

They do cost a bit more than other tights, but in my opinion, it's worth it, because I'll get a lot of wear out of them, and they're worth at least two pairs of tights.  They can be washed and hung to dry without losing shape or elasticity.  They fit similarly to other SPANX products - you don't want to go too small, or you'll be pulling and yanking on them constantly, but the size chart is very accurate.  I was on the borderline between two sizes, and picked the larger, which were comfortable and did their job, but also were a bit long.