I've been using BBB now for a two swim seasons. Prior to that I had to "pool store" it.
I've been letting my pool go a little since the close of the pool season. By that I mean that I'm trying to get my 12 year old son to take over
I had family coming over for the holidays and they wanted to use the hot tub, so I figured I needed to clear up the pool and get it looking better. Pre-BBB this would have frightened me as I knew it would cost me $100+ in chemicals and lots of time and frustration. This time with BBB I had no worries. My son and I went to Wal-Mart bought 8 big bottle of bleach and with testkit in hand knocked it out in about 48hours. It was great! And always, always works! No guessing, no FUD, just good results.
I tell everyone I know that has a pool (most everyone in my neighborhood) about BBB. However, they only get told once, then its up to them