yes it looks professional, but that piss yellow means that they are strictly looking for commercial piss stains in bathrooms. ha ha bet those guys would never look you in the face mikey.. they know who's the king.
It's over and done with. Not a niche market anymore. Now every janitor and even house cleaning services are offering some sort of tile cleaning and sealing. Get ready for whole house tile cleaning 75 dollar specials. They are probably already here.