Plastic and Aluminum Radiator

[ACK]

I received my new radiator from Advance Auto today (part# 433284) and it wasn't the 3-row copper one they describe, it's 2-row aluminum with plastic tanks top and bottom. Part # on the box is correct, so either the wrong one was packed or they need to update their description.

I'm pissed about this, but before I shoot off an email to Advance, I want to know if anyone has any info on plastic/aluminum radiators. Did they send me an inferior product or something that would perform equally, if not better, to what I was expecting. It has a lifetime warranty, but that doesn't matter if I need to replace it every 5 years. Does any one have real world experience they can share?