I don't know, I've not noticed it being a materially longer process. I use disposables a few times a week too when I go to the gym before work, so I feel like I get a good comparison. It definitely takes a *bit* longer, but not 15 minutes.I dont see a *huge* difference in results, but I do prefer the safety razor. I have very thick facial hair, and feel like I get more tugging and pulling with most disposables. Also, they get clogged up all the time which annoys me.