Just how effective is Rogaine/Minoxidil for hair loss? And how gradually/quickly will kept hair be lost if I cease treatment?

If I knew it was anywhere near as effective as finasteride (which I'm keen to avoid because of potential side effects) then I'd consider using it. But I like to keep my hair long and the twice daily application seems a huge long term inconvenience ...particularly if the benefits aren't nearly comparable with Fin. I'm also concerned that it might result in a more dramatic shedding in future if I decide to stop using it. Any other info on sides like libido/wrinkles/scalp also appreciated. Thanks