I too wish I had checked the reviews. Unfortunately, when a salesperson comes knocking at the door, you rarely have the luxury of time. The job was done quickly and the employee was polite. Now for the windows, they are streaked and definitely not clean. What I should have done is to ask them about the cleaning process and not assumed that they would go over each surface to remove the streaks. Too late to kick myself, but lesson learned for the next time someone comes knocking at the door.