I am replacing the 1 1/2" OD thin metal piping underneath my kitchen faucet. It is corroded.

My choices are to replace it with metal or plastic.

Is one better than the other?

Are there advantages/disadvantages of one versus the other.

My intuition tells me to replace it with plastic as this will not corrode like metal.

I am a new house owner and the house is supplied by well water. The house now has a fairly sophisticated water filtering system to remove iron from the iron laden water. Prior to that, I think there was damage done to the plumbing because of the high iron content.

Thanks in advance