Today I installed a Gator SR1 Pro Roll-up Tonneau cover. I went back and forth on which roll-up cover to get. I was generally considering the Access Original and Lorado covers ($627), and the Truxedo Lo Pro ($550). But I was constantly seeing reviews that said that many of the less expensive roll-up covers were just as good. Gator was consistently getting great reviews, and there are several 5-year review videos on YouTube with the Gator performing really well. Last year, I think it was selling for under $300 (on sale), and I bought mine last week for $349.
I just installed it, and it looks great! Installation was very straight forward. The fore/aft tension of the tarp is established by an integrated spring - so there's no manual adjustment needed. The tension is always automatically applied through the spring. The rails mount on top of the bed cap, and the cover sits 1.5" above the cap. This is the standard height - low profile versions range from 0.75" to 1.0" in height. (Personally, I don't think it looks too different, and I like the look of the standard height.)
There's a trigger latch on each side (driver and passenger) that needs to be released to roll-up the cover. And the tarp itself looks really nice. Overall, I'm super happy with the Gator cover and it seems perfect. And I saved between $200 - $300 that will be going towards running boards
@AnthonyRI