I did mine like 6-7 months ago and its held up fine. But there are two kinds. The lacquer and the vinyl. The lacquer is for hard plastics like the console and door panels, and the vinyl is for the softer stuff like the dash. The lacquer DOES NOT MATCH THE FACTORY BLACK. So do not get it. It has a slight blueish tint, plus the vinyl seems to be stronger and it matched the top part of my dash that was already black PERFECT.
EDIT: I actually used a different product. Do to www.50resto.com and search for dye. The stuff has OMNI-PAK on the label. Get that. The VHT stuff might not match right.