Very pleased
Unlike another customer, for me this adapter worked directly on a Debian (Bullseye).
As an indicator of operation, there is a small orange LED that is very (too?) discreet. It's a change from the bright white or blue LEDs found on some devices.
I chose an adapter with UASP because Mass Storage adapters (without UASP) do not support the TRIM command. This one does support it, but unfortunately not immediately on my Debian. This required some tinkering (see https://superuser.com/questions/1740543/no-trim-discard-with-a-sata-ssd-connected-through-an-uasp-enabled-usb-adapter ).
Finally, even if the transfer speed was not my motivation for the choice of this adapter, it seems to me very correct, provided that it is connected in USB3. With an old LDLC F6+ 60GB SATA SSD, I just measured 386MB/s. Unsurprisingly, in USB2, the speed drops to 40 MB/s, but it still works perfectly.