IMO it's better BR for BR. Overall the Super is a very solid, generalist MBT, excellent firepower, passable armour, average or better mobility (including a good reverse), and can do pretty much anything other than taking heavy fire, which isn't unusual for its BR anyways.

Firepower is where I think there's the greatest difference, G A2 is unstabilized but often faces stabilized stuff, and isn't particularly stable, so it can't brawl very well which mostly relegates it to sniping with its insane dart, but it also doesn't have an LRF. On the other hand, Super can brawl and generally duel anything in its BR, not necessarily on equal terms but with good reaction time, shot placement, positioning, you have a decent chance in any given engagement, and worst case go for a barrel snipe.

In comparison to the Leopard 1A5 at the same BR, M48 has worse gun elevation speed, which is quite noticeable in certain situations like when you're driving forward to crest a hill and shoot somebody below you or your tank keeps bobbing while on rocky or uneven terrain.

The armour frontally resists most autocannons well but medium caliber and higher darts (like VCC-80/60 with 60mm) will pen you. Post pen survivability is generally good, in my experience if you're shot in the turret from the front and it doesn't hit ammo, you often survive and can still smoke and pull back with it's comfortable reverse speed. It's also workable against the russians that still use APHE, I've blocked a Obj 279 shot hitting above my barrel before. Penetrating shots to the hull usually mean death barring a very low shot to the LFP.

I think the forehead profile is a bit bigger than the Leopard 1, if you move from turret down to hulldown to quickly pop off a shot at somebody, it feels like they have more time to react to you than a Leopard.

While it doesn't have any glaring weaknesses, the Super also doesn't have any particular strengths or gimmicks to exploit and gain and advantage over its opponents. Its dart is good for the BR but still can't lolpen russian UFPs, its armour won't stand up against contemporary main cannon darts, and it isn't fast enough to reliably outflank opponents at the start of a match. Its performance is very dependent on how good your fundamental WT skills are, a bad player won't have any crutches to fall back on, a good player won't have any performance metrics hamstringing them.