Does what it needs to but not as it was supposed to do
I bought this as the original was lost. Unfortunately, it did not work with my Logitech M185 mouse which was specifically listed as a compatible device.
Fortunately, it did work with another much older mouse (M238).
I can't say it was good value because it cost almost as much as a new mouse.
I can't say it was well designed because it's not that sort of product
I can't say it is comfortable because it's plugged into a USB port and you don't need to hold it.
It just needs to work and, to be fair, it does