It will last longer with proper prep. Powdercoat is also a tougher finish when it comes to chips and abrasion. In the end it's still a "form" of paint so it will need to be cared for to remain nice looking. Soap and water usually do the trick just fine. It is also slightly more resistant to chemical damage than regular paint, but then again it depends on what chemical. I use it when possible on my auto restorations and prefer it when possible.