With shotguns its really a preference thing. I actually like the controls better on my 88 vs like say a Rem 870. The slide release button is behind the trigger guard vs the 870's button that is in front of the trigger guard.
Also, the loading tray is better on a Mossberg since it tuck up and out of the way 100% vs the 870's spring loaded lip that has "bite" off the skin of my thumb when loading since its always being pushed down with spring pressure.
The traditional safety button behind the trigger is nice too.