Yes, I wouldn't want to reconfigure them often (I changed the height of mine once). The stands are quite cheaply made. The plastic legs that go on the sides are a very tight fit and are difficult to remove without damaging the surface or the edging on platform parts. The screws are also rubbish and had to be replaced.
I'm not using the stands at the moment because I reconfigured my desk and needed something with a higher tilt. I ended buying a pair of AudioEngine DS1s...
https://www.amazon.co.uk/Audioengine-Desktop-Vibration-inclined-silicone/dp/B002ATK2OS
£29 is a lot of cash for two chunks of rubber, but they look good under my Tannoy's and point the tweeters in the right direction.
One last point about the Fluid stands; my Tannoy monitors have curved edges and a foam isolation pad glued on the bottom. They never sat fully on the silicone feet on the top of the stand. They weren't wobbly, it just looked a bit weird.
* Update *
I bought a
new monitor and the Tannoy's had to back on the Fluid stands and monitor risers in order to fit on my desk. I'm pretty happy with the setup...
The monitor is very nice. It has a built in KVM and a USB-C docking station with 90W Power Delivery. As well as replacing my old screen, it's displaced a USB docking station, laptop PSU, DisplayPort switch, USB switch, USB webcam and 1/2 mile of cables.