Works wonderfully and is very easy to use / worth the price
My 'low priced' concrete guy left me a mess.  Concrete splatter on nearly everything (walls, doors, etc).  Scraping alone will only damage surfaces. I hoped to find an easy and effective chemical solution but not an acid.  Speedy Clean did the job.  It sprays on foamy and needs to sit on the hardened concrete for a full 10 minutes.  I then used a 4 inch scraper to easily remove the splatter.  Anything that didn't want to easily come off (super thick concrete blob) received a second treatment.  It all came off with no damage to underlying surfaces.  Be sure to wash the area well to neutralize the cleaner and lay down a tarp before starting if working on a concrete floor so you don't damage the floor.
Rating: 5 stars