Upload & Sell: On
I trust Ken's opinion on photography about as much as I trust my local Burger King to not give me food poisoning. Plenty of haters around on here and elsewhere towards him.
Regardless, for $900, this is the best lens that honestly matches both the Canon and NIkon in many ways (except weather sealing with the Nikon). Again, you'd easily pay $900-$1000 for a used 35L that's many years old (even in great condition), upwards of $1100 for a mint+ condition 35L. For the type of shooting this will do, it's a no brainer to get a NEW LENS with a WARRANTY, for a lot less given that it performs equally, or slightly better, than the professional counterparts.
I've been working with this one for awhile, and it's a tank. It's one of those lenses that, if you don't already have a 35L, you buy if you want a 35 1.4, but if you already have a 35L, not really worth selling to buy this one... Just my $.02.