I find adjustable very useful depending on the growth of my beard. If it's a week's worth (if I've been on vacation), then the more open 4 or 5 is perfect. If I'm shaving every day then, 1 or 2 is great. Something I can't get with my Merkur HD. But if one shaves consistently and doesn't use it, then it can be overkill. But isn't this the place of Team Overkill?