It is fine for polished lip. Of course, after wetsanding, the surface would be blurry but after a few rounds of metal polish (Meguiar's NXT metal polish), the shine comes back again.
A polished lip is harder to maintain as it gets dull easily and water stains easily form. However, the redeeming factor of having a polished lip is that it is repairable.
Chrome lips are more bling and easier to maintain. Brake dust etc is easily removed BUT if u curb it, it's next to impossible to repair, because chrome is only a layer on top of the metal. Unlike polished where the metal is actually polished to a high gloss finish.
i spent the last 2wks before CNY repairing my Iforged Daytonas polished lip. Here's a photo:
Here's another (Please ignore the dust on the lip!):
Cheers & good luck!