Rhino liner and Line-X are two of the most popular. Rhino is generally a little more expensive, by about $75-$100. Both are available in "colors" to accent your truck. Some owners report no fading at all, some owners report significant fading. Depends a lot on color choice. Some colors are more photochemically reactive.
Things to consider- are you going under rail or over rail? If over rail, proper masking to leave a clean line is important. Surface prep is also important. If they do not "scuff" the bed then proper adhesion may not occur. What about hardware? Will they mask or (better yet) remove any hardware before application?
Might cost you upwards of $450-$500, depending on bed size, color, and application (over rail, under rail). It would be really nice to see examples of the shops work beforehand, yes?
Sometimes a "lifetime warrenty" covers peeling, but may not cover chipping. You might ask.
There are even self-applied roll-on products available for around $100.
Best spray-on liner? Personal preference. I have a Line-X and am very pleased with it.
<- 2000 Ford F-350 Super Duty Crewcab 4x4 Power Stroke Diesel. 4 1/2 tons of truck almost 22 feet long. I love it so
