Im in my 30s and use one daily.
I dislike having to tie laces every day and i can slip my feet into my shoes (while perma-tied) like butter.
Yes the laces are slightly looser than a fresh re-tie but not uncomfortably so or slopping around when i walk.
I wear faily flexible everyday shoes though, would not reccomend this technique with rigid leather dress shoes or work boots which need to be tied every time.
Im in my 30s and use one daily. I dislike having to tie laces every day and i can slip my feet into my shoes (while perma-tied) like butter.
Yes the laces are slightly looser than a fresh re-tie but not uncomfortably so or slopping around when i walk.
I wear faily flexible everyday shoes though, would not reccomend this technique with rigid leather dress shoes or work boots which need to be tied every time.