Overall this is a great product! I would recommend it to others, not for E.D. issues but to experience the other enlargement benefits. Let me explain.The suction power is definitely there, and I like that pressure can be adjusted and held. Very useful. Size is also a plus. It's on the big side, but I'd rather it be too big than not big enough. The only downside is the width of the product -- again, this would normally be a case where a little more is better than a little less, but the product tends to want to pull... other parts... inside the tube. Not wanted. Simple workaround is to place a thin towel between the bottom end of the shift and the product, preventing anything unwanted from being suctioned in. Problem solved (though slightly inconvenient).As far as results, I have not used it in a disciplined manner but can still see and feel the results! Give it a good and get out what you put in.It charges and retains charge great. Besides the slight adjustment regarding fit, everything else is great! Overall 5/5.