Have been using this for a few years, but have some advice.
If you do use this, make sure that you rinse your clothes thoroughly! Perhaps use it in a quick rinse and spin cycle prior to your main wash. Over time, one can become sensitive to the active ingredient and that would just be a shame.
The review: I'm a stink guy, my clothes have always had this sickening sweet smell which proved impossible to remove... Until this came along.
The sun, biozet, multiple washes, you name it my clothes would still smell. This product helps kill the source of the stench, and together with eucalyptus oil has made my life (and the lives of those around me) much better.
This lasts for many washes, and considering what it has done for me it is worth every cent. Similar products with the same ingredient can be found, equally as effective, but some come with a scent and this does not.