Standing seam metal roofs are premium roofs and with no revealed fasteners. These roofs tend to last a very long time.
If it is the roof look you have decided on, we recommend the 24-gauge Kynar 500 finish. The downside to these roofs is install cost and lack of warranty, while Specialty Roofing will always stand behind workmanship and the coil manufacturer may stand behind finish it is unlikely anyone will cover labor to remove and replace a standing seam roof.
We usually recommend considering Gerard Metal Roof if you’re interested is in high end roof options.