Got a mail from Brando Workshop earlier today advertising price drops and this SP is on discount at $20 instead of $25 (25 on amazon too), free shipping. This might be the most expensive but also the better finished one i've came across, with its rounded edges. Will be next one installed but my Smtr glass
is smooth and holding well for €5 the 2 pack.
ZS570KL Brando Workshop Premium Tempered Glass Protector (Rounded Edition) there: