I have had my V2K for one year now. I had started TRT treatment and my sex drive had went of the chart. My wife could no longer keep up. She did some research and order me V2K. The first couple of weeks, I could not last more that 10 minutes. Now I can now go for about 45 minutes to 1 hour now. In the first few month’s, I was busting two to three times a day. In the very beginning, I busted three times in a 45 minute period. That basically drained all my energy and I slept like a baby. V2K has improved my marriage no more argument over miss / match sex drives. Thank you!!!