I was super-excited to finally get  a pair of these!  I immediately added my own insoles, so I can't comment on the arch-fit.  Given my experience, I'm not sure I would purchase from hot chocolate again.

I have two negative observations:

1)The hot pink sole edge is peeling - there appears to be an overlay coat (of vinyl/rubber/latex?).  The under-color is a hotter pink, which is nice, so once the peeling is completed, I don't think I'll mind the color if it stays.  The secondary problem is that they pick up dusty footpath dirt easily; these shoes will have to have higher maintenance than one might expect from their flat-soled utilitarian look.

2)  The left sole is peeling away from the shoe in the toe area, which is pretty bad considering these shoes have only been in use for three weeks.  A bit of shoe goo should solve the problem, so I expect that the underlying materials will give me at least 6 month of wear.