but flare was a major issue for me.
CA can be removed in post but removing flare is a pain in the a..
im very happy with my EF 10-22mm.
+1, although the 10-22 still has enough CA that I do remove it in PP.
On a wide angle, for landscapes flare is one of the biggest concerns for me. + you can put filters on it.
Someone mentioned the MFD - it' super short on the 10-22. I think quoted at 9 inches, bu that must be to the sensor becasue it seems to be much less than that. I think some manufacturers like sigma quote MFD to the front of the lens.
Basically you can get very, very close to the foreground with the 10-22.