And that is their second launch within 14 days. The previous launch was a satellite to a geostationary orbit.
SpaceX plans to beat that record soon with launches a week apart becoming routine.
http://nodis3.gsfc.nasa.gov/displayDir.cfm?Internal_ID=N_PR_...
Falcon 9 v1.1 is almost certainly safer than the Titan II Gemini Launch Vehicle. As with prior Dragon flights, humans could have flown and been just fine.