I had an access and really liked it but keeping the vinyl new looking was periodic treatment with Armor All but they probably have another product that doesn't collect as much dust.
If you're opening/closing the cover quite a bit, you will wear out the velcro on the rails, at least I did. I had to replace it a few times, then when I finally sold the cover because I got a diff truck, the velcro on the cover had to be replaced but the guy who bought it knew someone that could sew some new on.
The rail velcro, as I recall, was about $35 a set and you probably have to use access brand. I used 3m one time and it didn't grip/grab the cover very well because it had too many "hooks".
I am in the market now and I keep coming back to the access. They do make some good folding covers too but you have that whole contraption up front if you need to use the whole bed to haul something.
Undercover makes a nice looking one piece plastic cover that is supposed to be light and easily removable but then again, if you need the cover off to haul something, then you don't have a cover when you get to where you're going.
