My n=1 is that it makes me slightly slower but probably within the margin of error. I find that I recognize whole words at a time, and the shape of the word is

My n=1 is that it makes me slightly slower but probably within the margin of error. I find that I recognize whole words at a time, and the shape of the word is unnatural to me when half-bolded like this, which might inhibit recognition slightly. Perhaps after an adjustment period it would be useful, but in my current state, it is not.