I don't have many straight male clients who are willing to write testimonials and give permission for their pictures to be posted, but here is a good look at what is possible.
http://www.executiveclearance.com/beforeandafter.htmlYour, "How long" question is not answerable without knowing what you need done, and who will be doing it, and how frequently you will have treatments. This is why electrologists insist on an in person consultation.
I have a client who likes to tell people about having spent 10 years and $20,000 on the attempted removal of a male beard that has yet to be completed. This always percipitates me replying that the $20,000 was not given to me, nor have I been the one who has been seen for 10 years. The truth is, sometimes I see this client once a year, others, perhaps twice a year. At that rate, it is possible that the job will never be completed.