I’ve got one and it has worked great. With the kettle or WSM, I find I need to keep the base close to the cooker. I sit mine on the Performer table or I have a shelf on my WSM that I set it on. This works well.
When I set the base about 10’ away it starts to become dodgy for me.
Also, I steel wool the probes every couple of cooks. The end with the number can become covered in grease/smoke and prevent charging.
I’m certainly a meater fan. After a bumpy start, they have a nice product.