Mileage will be similar. Expect reduced grip in wet & dry, & also reduced aquaplaning resistance.

NVH/noise will be similar.

30k km almost botak? how you drive, my tyre now around 20k km, barely any wear.. i take my corner seriously, go and back from office everyday (35km 1 way, 70km daily )

I drive to work around 60km go and back everyday and around 300km 1 way trip long distance every week.

Atm2 is Assurance Triplemax 2.
Depends what type is your driving, if you regular driver not rempiting here and there ATM2 is good.

If you the kind of who tekan here and there obviously ps3 is better lah.

Have u considered XM2+? similar price as PS3 but longer life tire though and as a tradeoff it wont be as good as xm2+ in terms of grip.

how far will they in difference in terms of grip?

Don't think u can compare grip level PS3 and XM2+. it's different league, xm2 is eco tyre while PS3 is UHP ( correct me if i'm wrong )

hopefully my tire can last more than 30k km.. huehue.. so far its looking good, got small chip here and there, however the thread depth and etc still good..

Did you monitor your tire air pressure often? or once in a blue moon?

one thing about it need to pump a lot pressure higher than ori spec to perform.

at least plus 2-3 psi
if pressure reduce a bit it will be very noticeable especially morning cold period. wheel difficult to rotate, bottom kemek feel.

where as other brands wont happen unless really puncture leak