They are an interesting mower, but I am only interested in their extra cutting width for use as a mower for large patios. Parts are too hard to come by if something goes wrong. Besides, I like the engine head to stick out the side, as I always felt that was a defining feature of the thumb latch series that I always found fascinating.
The Twin does away with that and it always did and continues to bother me. I got "lucky" and was given one through someone I know and later found a matching catcher.