Great product!
I'd never heard of an alum block until last year and decided to try this as I frequently have irritated skin and small nicks after shaving.  It works wonders as long as you leave it on long enough to work.  You can't be in a hurry and rush it or you are wasting your time.  I leave it on for about 5-7 minutes before rinsing it off my face and neck.  As it drys on your face, you'll notice how it cools the skin.  It reduces irritation better than after shave and helps to stop bleeding.  It stings a little, but nothing horrible.  I've had my current block for almost 12 months and it isn't even close to needing replaced.  (Just make sure you keep it dry between uses.  I keep mine wrapped in a cloth.).
Rating: 5 stars