Do not use this product if you have any sensitivities to scent. I used less then half of the recommended amount and the scent was overpowering. I also could not get the smell out, and I tried everything.
I guess technically the effectiveness of great, however I found it way to overpowering.

I really don't find that this makes any difference in the scent of my laundry. It doesn't last longer either. I prefer to just use Gain laundry soap - it smells great and lasts.