I wear them on an Africa Twin XRV750 and I have done about 3000 km (2000 km on road and 1000 km off-road).
The tread has reached the middle.. Logical for such a tire with knobs..
It has amazing grip on dry road and on dirt, mud, and sand!! It requires caution on wet roads "logical"..
It is a soft tire that "sucks in" and you don't fear it in turns "half a finger to finish the tread"!!
The cons are the slight trembling on the handlebar from the knobs, moderate noise "I have an exhaust so it doesn't bother me much" and that the rear tire wears easily..
I highly recommend it for 50/50 use!!