The only bad side is that it hasn't really spread far and wide, it's still only in few areas you can find one or two, I think with time and with more machines it'll reflect in bitcoin adoption and acceptability
It has not spread so far and to a more variety of countries just because of policies being used. There are some measurements that have to be be taken in first place before jumping into these implementations.
Banks need to update their softwares in order to provide such currency exchanges. Which is not an easy step like snapping your fingers.
There are alot of back side agreements taking place right now so it's just a matter of time till we see them expanding even more.