Roxolani: Some games use this type of DRM (for example, Diablo III). What do you think about "Always-on DRM"?
I think it is even more annoying than the "Almost always-on DRM" of Steam but those who have a very stable internet connection will practically very rarely feel a difference. So for practical considerations it is almost as good as Steam for example. Only sometimes it's worse.
I feel that DRM advocates, especially the publishers, should avoid "Always-on DRM" like the plaque because it annoys customers too much. "Almost always-on DRM", even if the inbuilt grace period is only a few minutes (15 maybe to save the game) is the much better option because you have nearly the same anti piracy effect while at the same time pissing off customers much less.
Microsoft with their XBox-One didn't know this and they got a shitstorm last year. In the end they went back to "Sometimes-on DRM" and now everything is fine and the console sells like hot cakes. If only they had been wise from the beginning they could have had less trouble and more profit...