Bru N Water really isn't that involved. If I can do it anyone can. The download is free. Brewers Friend and BS3 also have water profiles but I've never used them. I strictly use Bru N Water.
As an example for a Bells Two Hearted using 8.6 gal water (5.75 gal into fermenter)
Yellow Bitter profile/ 100% Distilled
6 gram Gypsum
3 gram Calcium Chloride
3mL Lactic gets you to 5.3 pH
These additions will get you to:
Ca>>68.2 / SO4 103.2/ CI 44.6
I tried real hard to use BruNWater, but there was some part that just wasn't intuitive - I couldn't get it to work for me. Since I use Brewers Friend for all my recipes, I just use their water profile, and it seems to be easier to me. I may revisit BruNWater one day. When I do, I'll come back to HBT and get some advice.