I like them, assuming as previously mentioned, the shape is right.
Simply adding a “fat” knob is more for looks. A knob with modest diameter increase (I.e. a little “fatter”) but also a longer knob is the sweet spot.
I find these knobs fit my palm better, provide a little more leverage and move my hand father from the scope, all of which provide some benefits over a stock knob.
Now, some “tactical” knob designs seem more focused on improving Instagram pictures than anything else.
