So far, so good! I bought this cable to replace a much-too-short one that came with my new modem. This AmazonBasics cable does the trick.
I was slightly confused by the little white plug/covers that came over the ends of the cable. I had to use a flat heat screwdriver to pry them out of there, but it worked out fine. User error and I felt a little silly once I realized it. Some instructions might be helpful for those of us who've never bought a coaxial cable before.
It isn't overly stiff like some coaxial cables. The grip/twist things are convenient and so much easier to use than the old school ones. As far as speed goes, there is absolutely no difference either way. Okay by me!
Overall, excellent cable. I will update my review if anything changes.