What does celtic sea salt taste like?

I bought the Celtic sea salt, which is supposed to be much better for you than refined salt, but I procrastinated with using it. I was afraid it would taste funny. I'm not too adventurous when it comes to trying new tastes but I finally tried it.

It tastes good. It tastes like salt to me. I've been using it to cook with, as well as in my salt shaker. I'm wondering if I can get the really coarse Celtic sea salt and put it in a pepper grinder? I might have to try it.