Imagine popping an alert in one method call without the hassle to make a variable or implementing the delegate!
Even for the alertViews with textFileds in them!

     [emjAlertView showAlertWithTitle:@"Enter your name"
                                     message:@"(or nickname)"
                               configuration:^(emjAlertView *alertView) {
     
                                   alertView.alertViewStyle=UIAlertViewStylePlainTextInput;
     
                               } completion:^(emjAlertView*alertView, NSInteger buttonIndex) {
     
                                   if (buttonIndex==1) {
                                       //user pressed "OK"
                                       NSString *name=[alertView textFieldAtIndex:0].text;
     								}
     
                               }
                           cancelButtonTitle:@"Cancel"
                           otherButtonTitles:@"OK", nil];