I was fascinated too when I saw the double strap monk for the first time. Wanted the C&J Lowndes but couldn't find it in Italy but I was lucky and found another pair of dark brown double strap monks. They are my go to shoe for going out at night in jeans.
These are mine (the ones on the left). I have not worn them yet. What would they go with? I tend to dress casual more than suits.