This bad boy IS a beast. ... We call it The Hubble. (I actually use it without a tripod, but it's tiring)
The Bokeh is amazing. Sadly it's not mine, but I do rent it often for weddings.
I never post, but thought I had to share some random shots to show off the lens. Very little pp:
Sutro Tower in San Francisco (shot from Buena Vista Park): f1.8, 1/8000, 100 ISO with a 5Dc
Tree Trunk in Buena Vista Park: f1.8, 1/200, 100 ISO with a 5Dc
Bridesmaids: f1.8, 1/5000, 320 ISO with a 5DmkII
Bride: f1.8, 1/200, 200 ISO with a 5DmkII