My neighbor was a little picky about it, always had to cut it a certain way, he ordered plugs of special grass for in back, always trimmed, edged, etc. When he got sick he really didn't want anyone else cutting it, but it got to the point that he couldn't, so I started. I tried to be just as picky, and I guess I was because he was always happy with it and I had a couple of other neighbors wanting theirs cut.
He's been gone a year now, and I still cut it for his wife, and I'm still picky with it.
My lawn is a totally different story & full of dandelions, which I kind of like too much to ever kill.