I bought a silk n tightra two and half months ago. I bought it as I am in the menopause and I was having severe vaginal dryness issues plus your vaginal walls thin as you age which is very uncomfortable when having sex. If I sneezed I had a slight trickle of urine but not much which may be due to me not ever having children.
I used the machine as directed for two times a week for 6 weeks and now I use it once a week. My dryness has really improved which is amazing, I can actually have intercourse without being extremely uncomfortable, I also sneezed the other day with a full bladder and had no trickles. Although this machine is not cheap the results are worth it.