I have one pair of cycling shoes with boa fastening. It works but I think the only advantage it offers over laces is the lack of ends to flap around. In other ways I'd say it's actually inferior. It can be a bit difficult to loosen, for example. And the ratchet on one of mine failed on about its third use. Simply cracked inside and came to pieces. Replaced under guarantee obviously, and has been fine for a couple of years since, but I wouldn't choose the system again if I had the option. However, I haven't heard of other people's breaking in this way, so maybe I was just unlucky.