No, don't have one. But some times you may find it useful to know your speed through the water (paddle wheel) and not jut your course made good (GPS).

I have seen setups on boat where the depth sound is mounted over the back of the boat (on a pole) and it also has a paddle wheel incorporated into it. This is then linked to a chart plotter. Might be a bit unsightly but easy to maintain.

So many choices.

I have a couple on board. Better than nothing for tuning. The Velociteks are viewable by the crew. Paddle wheel speed available at helm.
They are as accurate as the Raymarine plotter + a bit faster to respond. They also alert about knocks.
We can also shift them to the skiff.
They do chew AA batteries.
If we are racing we tend to use them.