I find that the new KDE4 notification icon is not very easy to see. The “progress” indication is a microscopic vertical progress bar, that I find very difficult to interpret.
OK, it is a minor annoyance, but I do find that I regularly try to use the network on my laptop before the connection has been established. It is also a regression over the icons in 11.1 or before, which were very clear.
If people agree with me on this point, I will post a bug, with the aim of getting a clearer icon.
All the best