They surprised me! Very well-built, solid and the measurements etched on them made precise setup extremely easy.
I originally bought them as a compromise since I didn't have the space for quality grounded speaker stands in my studio but wanted better than the simple decouplers on my desk I have been using for the last few years. To my pleasant surprise, they dramatically improved the performance of my monitor speakers in my room, compared to the previous setup, well beyond what I expected!