T2 for the US is a so so. To Tech to the CPT then for a stuart is a waste for what the stuart does. Its also a huge sink in manpower. Shrek blobs kill it, stun shot targets infantry instead of tanks, and crit tank damage sometimes doesn't activate right away when the stuart is behind the tank you want to snare. Unit needs tweaking.
I think you should improve your micro. Almost 80% time in game as US I go for Stuart. It helps a lot to push back, harrass points or even helps to fight panther with blinding shot. Yep it kinda krazy clicks needed, but it always rewarded.
Maybe some buff for ROF would be good, or some price lowering.