I am still using. No complaints on it from me. Its not expensive and I find it does flush more salts out than just water. I have also started usin it when I do a flush between veg to harvest switch.
My last round I have also started using the 3 part feed from advanced. Micro, Grow, Bloom with PH perfect and wont look back now. Really like that it takes the guess work out of ph issues, my PH is ALWAYS in check 
Also purchased an R/O filter system for my water which also helps alot.
I have made ALOT of changes to my set up and feedings but Flawless is one that will stay in my line up for sure
Sorry for the late reply @Originalgazelle
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