Apple cider vinegar

Has anyone here taken apples cider vinegar daily for whatever reason? Have you had positive or negative issues?

I did back in the 70s when that apple cider/lecithin/whatever diet was trendy. Never since. I couldn't do it now because I'll have reflux issues if I eat/drink things with a lot of acid in them. Even certain fruits will set it off (for me) sometimes.

I take it when I fele that my food is not getting digested just sits there. I take 1-2 Tbs, mixed with a little bit of warm water.