This review is for my first use--which was today.  It gets jammed fairly easily with very small sticks a third the width of a pencil or less.  You usually have to bend down to clear the jam--which was the most tiresome aspect of this.  I guess it is safer because it does not mow backwards.  That means more work.  Don't expect it to take only one pass over an area.  Once you come to terms with that, you can become one with the mower.  No sense in being frustrated, that just is how it is.  It isn't hard to push after the first minute or two, and the arms stop being in shock.  But you will be doing a lot of walking back and forth.  I did the front yarsd today.  The back will be more of a challege b/c the grass is longer.  I may cry.  I did smell the cut grass.  That was nice.  Got a little exercise and sun, that was nice.  Didn't like that it kicked up the sticker burrs which stuck all over the bottom of my pants legs.  Other than that, I think it was pretty much what I was expecting.