I have - and they are insanely expensive (okay thats to be expected) but what is worse is that they give very, very little light, not enough to light even a dinner table, let alone a small room.
Those compact fluorescent lights? Yeah not only do they flicker (which is bad for your eyes, even though it is not fast enough that you can see them just like the old CRT monitors) and there is some evidence that they may be linked to eye cancer, but even if they aren't they take about 30 seconds to turn on fully, which means I have to walk the corridor in the dark (what then is the purpose of lightning? fuck if I know). We don't need LED lighting, we don't need compact fluorescent lighting, we need actually useful lighting, which means incandescent light bulbs for at least the next 30 years.
Call me back in 2040 and we can try again.