It's a nice feeling having a fresh smelling shaver cleaned in alcohol at the click of a button.
But from my experience, taking off the foil and doing a quick rinse does just as good a job.
You also have to keep purchasing the alcohol cartridges that go into the machine. So you have the extra expensive of the initial purchase and the on going purchases of the alcohol cartridges. That's not that expensive though. Each cartridge lasts about a month or so depending on how clean you want your cartridge to remain. 3 packs at a store are like $15.
IMO it's nice if you like techy convenient things and don't care about saving some money but it's not like you can't clean it just as well without it.