Yay, but the particular cover does matter.
Having a destructive, 3rd-degree-burn risk waving around on the end of a barrel is just not something I want to deal with. Jack Leuba (of KAC) posted a bit on TOS about covers. We all understand the theory of trapping the heat in, but his post about KAC's testing alleviated much of that concern for me. Suppressors also tend to glow brightly under night vision after relatively small strings of fire.
I have a Burn Proof Gear heavy version that wraps around both ends of a Sandman K. I chose it because of that wrapping feature, and because it was designed for semi-auto carbine things, not precision shooting things. It has been great and saved a pair of pants at least once so far. I don't know why the other poster had issues with it moving. Mine will spin, but I can hold the whole weapon by the suppressor/cover and yank on it without it sliding off. I have personally seen, and heard more of, Cole-Tac's traditional covers sliding off after very tame use. I agree that the end of the barrel/suppressor is the worst place for weight, but I've found the BPG cover to be negligible in adding weight. The BPG does wrap over my Key-Mo mount, so it does have to be "unlaced" to take the cover on and off, but I just keep it on and have no need to attach/detach quickly.