I dont blame you.
I’ve seen the same botched jobs you have. Those silly Grout pens from QVC that looks like you used White Out or tooth paste to hide the stains. Lumpy, uneven results that look horrible. I blame the poor quality products from the hardware store, lack of proper prep work and no artistic skill from the applicator.
With our extremely thorough method and superior Acrylic seals you can be sure to get many, many years of perfect looking grout and clean up so easy you wont believe it