Sorry Bosman, I haven't been on here the past couple weeks so I just saw your post. Thankfully Neuro stepped in. Yeah I'm still a little up in the air about this lens for general photography. No doubt about it, it's a nice lens but perhaps it's just not my style for most shots. But for macro, now that's a totally different story.
It's not a macro replacement for sure, but for my level right now it's a great alternative. I'll probably get the 100 IS L eventually but I'm thinking one of the 70-200 models is more important at this stage. So until then, this will be my go to for macro (in combination with the 70-200 IS II with extension tubes as well.