I have not even tried this product yet, but from the message I received from my credit card company at 2:30 am this early morning, Slimfy is a fraud company. I had to have my card blocked for overseas transactions altogether.
I paid for a free trial and shipping charge yesterday, from my smartphone. There was no saying that I would automatically be charged again without my authorization. I was charged AGAIN this morning. I do not care whether this product works or not. This kind of dishonest business practice simply takes away even the slightest expectation that this product might work after all.
Do not try this or any other product you buy online without thorough investigation. Also, do not order anything from your smartphone. Never trust any words like "there are only 3 days left." Do not trust a company that starts with lies. One thing I just learned again, which I have forgotten for some time, is that there are so many scammers hovering online like zombies without moral values.
Bottom Line: No, I would not recommend this to a friend