The successful installation of any flooring rests with properly preparing the substrate and correctly using the appropriate floor prep products to remediate any problems with it.
Grout has a specific function and when used correctly, it does a great job. Unfortunately, too many tile placers seem to be unclear where grout is to be used and where it should not to be used.
Your project is complete. Every tile is in place, the installation was done on time and under budget, to the exact specifications. Even the project manager is beaming.
But don’t break out the cameras yet to add this masterpiece to your portfolio.