I like how you dont mention ISU-152 that can instawipe infantry, and do some serious AT damage if switch shell.
*snort*
hahahaha
hohohoho
hihihihi
... seriously
Don't rely on you memories of last year. Mobility is bad. Reload is very long. Penetration is very unreliable against Panthers and better. It can't spot for itself (unlike the Elefant with spotting scopes) and is incredible inaccurate. Oh, yeah and the switch shell, how much time did it take? I think about 11 or 9 seconds if i´m not mistaken.