I had an accident with with my kit lens and was looking to upgrade to a general purpose lens anyway.
This Sigma is on sale at B&H for $399 and seems like a good deal.
I was also considering the Tamron 17-50 2.8 or the 28-70 (probably not wide enough on a crop) but don't know if need the constant 2.8.
I like the idea of having a little extra reach & still wide and the macro is a nice little bonus.
I've seen mixed reviews but not a whole lot on this lens.
I basically use it for my kids, vacations, car shows, static aircraft.