Hi Lisa:
Welcome! I don't have AB honed but I do have Jet Mist honed. The fabricator applied a sealer to it, but that seemed to be reacting with our hard water (got water rings) and I wanted more protection (and a deeper color) so I applied an enhancer over the sealer. If I had to do it over again, however, I would have skipped the sealer and gone directly to the enhancer. (I applied the enhancer to a remnant piece of our Jet Mist and it looked great and didn't stain, despite my experiments on it with olive oil, lemon juice, etc.) So my advice, as long as you like the deeper color, is to use an enhancer. The one I used is DuPont Stone Tech Enhancer Pro. It was very easy to apply (I put on two coats) and is not greasy or blotchy (as long as you follow the directions, especially the part about wiping it very well after the drying period). Hope this helps!
Remnant piece with and without enhancer:
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Color Match
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