Anyone use "Evolution Seed Soak" feminiser? Does it work?

Anyone have any experience with it?

Evolution Feminiser Seed Soak Solution 30ml Hydroponics on eBay, also Hydroponics, Plants Seeds Bulbs, Garden Plants, Home Garden (end time 03-Oct-08 18:07:28 BST)

...Looks kind of tempting and cheaper than feminized seeds...

i use collidal silver from the supplement store costs like 5 bucks soak the seeds in it for 24 hours then germinate as normal im 4 for 4 so far might be a quinkedink but so far so good