I have bought two Fender ABYs, this and the micro ABY. I initially preferred this one over the micro, however, after a couple of months with both in my pedalboard, I had to sell this one and get another micro one, here is why:
I use ABYs to connect two instruments to a pedal chain (instead of the more common 1 instrument to two amps) so I don't do shift like going from A input to Y or vice versa. Since all the in/out jacks in this pedal are on top, I had to either put the pedal upside down or sideways so that the instrument input was actually going towards me, however that would still leave the output (to the pedal chain) facing towards outside the pedalboard. The other issue is that it is three times the size of the micro, and as I populated my pedal board more and more, this ABY was taking too much space. So after some months, I had to get rid of this and get a micro aby - which is smaller and has A, B and Y jacks in different sides