I was impressed at how quickly it worked. My feet were in very bad shape, calloused with cracks and sores. After only a week they had improved dramatically and were no longer cracked. I had tried everything else on the market and was even considering trying a sander. It was difficult and painful wearing any kind of shoes.
I would certainly recommend this to anyone with sore, cracked feet. The initial outlay may seem expensive, but it is worth it.
Bottom Line: Yes, I would recommend this to a friend