I am 71 years old and, although I used to do this kind of work, my body won't do it now. Consequently, I hired a day laborer to use the wall chaser to make groves on my pool deck. The idea was to make the deck look like flagstone (there will be more coloring and touch-ups after the grooving). He reports that it is a good saw, especially for the price. He had to stop occasionally so the motor wouldn't overheat, but he says that he has to do that with all concrete saws. The width of the channels were 1" wide and 1/4" deep. Much to our surprise, this allowed the chaser to cut curves in addition to straight lines. Renting a wall chaser would have cost much more money. I am a very happy camper!