Thanks for posting the review even though it is an old lens :-)
I am actually about to pull the trigger on either this lens, or its 100mm brother for a portrait lens attached to a 6D. These portraits will mostly be my kids and family. Any thoughts on the 100mm as a portrait lens vs. the 85mm? I am leaning towards the 100mm because I shoot my daughter at basket ball also and my 70-200 f/4 just isn't letting in enough light at the gym.
BTW, I too, don't mean to be rude :-)
Which 100mm are you asking about? If you're talking about the Macro L it's one of my favourite portrait lenses: http://www.canonrumors.com/reviews/review-canon-ef-100-f2-8l-is-macro/.
I worry that the AF on it may not be able to keep up in sporting situations. The IS will certainly help, but it's by no means a "sports" lens (switching the focus limiter away from the macro setting would help too).
I had the 100mm f/2.8 Macro (non L) and it was nice, but if I remember correctly focus was even slower and a lack of IS really hindered hand-held shots around 1/100th, especially on macro shots.
The 85 had an incredible sale on recently, though even the price now is well placed by comparison. I'd skip the 100 Macro unless you're saving up for the L, and go for the 85 1.8 instead in this case.