I think it's mainly a strat milking vehicle for getting some Vehicle Damage Kill %
We use them in scenarios that have a ground-war component for the Germans.
Put a +1 on your geekness atribute
I actually prefer it when running troops into a "hot" area. Little better armor, so it's a bit more survivable. You do give up some of the M-3's speed though.
Aiming is a little difficult but if you use the whip aerials as your distance counter it is quite possible to aim.....