I have tried using Bru'n Water and it just seems heavy handed on the salts and is way more complicated than it needs to be. I created a spreadsheet based on John Palmer's book How to Brew. In the book he tells you what each gram of the salts contribute. Funny thing is, my spreadsheet comes out almost exactly the same as BeerSmith 3. I can get my information in less than 30 seconds and not 20 minutes (learning curve). It is possible that once you master Bru'n Water it becomes second nature and maybe you become much quicker in the process. But, I don't have that kind of patience... My Bad!