Here's the thing though. Many Men will naturally experience sexual dysfunction and the likes at some point in their life, and the odds of such occurrences happening only increase as you get older. When a guy says he's only just now having ED after taking finasteride for more than a few years it seems more than likely they were inevitably going to have that issue come up regardless of the finasteride use. That's why they have placebo groups in trials to see how the occurrences of ED compare with test subjects. Honestly though, ED is still a very real side effect of finasteride and whether it's 2% or 5% or whatever, that's simply too high for most men to be comfortable with using for their entire life. Most people don't like the idea of playing Russian roulette with their sex life at all