It's micro-intensive but it has a lot of potential if you use it correctly imo. More potential than StuG or SU-76 I'd say.
I mean, there's not a lot you can do with a StuG other than sit there and shoot at stuff while tanking damage. Conversely, Pumas can actually flank and chase stuff down. StuG can't really do that.
This isnt star craft. micro has nothing to do with it. its more of a risk reward situation and stug offer a whole lot more by just sitting their and tanking spanking the shit out mediums.
A puma on the other hand needs to get behind the enemy tank.
if it hits a mine its death
if it get hit by an at nade its death
if its spotted before it can get into position its death.
This unit is shit , to expensive and delays your tech far to much