No lens is ever a perfect lens, that would mean it needs no revision to update it in years to come but we know full well Sigma will release version 3 with whatever new technology is around at the time.
It's as good as a 35mm 1.4 can be though and the pros far outweigh any cons.
If it does all the right things for your shooting then go for it. No point buying a lens just because people online said it is amazing and then it only gets used a few times I went through that phase years back!
Slow to focus though is it not?
Yeah somehow I can't see myself ever wanting to pay *almost* triple the cost of the 1.4 Sigma for slower AF and more lens flare just to have a 1.2 aperture.
Slow to focus though is it not?