I sail a lot of different boats. Many have lazy jacks. A system set up as above is a dream. Those that cannot be stowed forward can be a nightmare.The real key to loving them is making them collapsible so when raising the main you can pull them forward so battens etc hanging up is a non issue. Have sailed on boats without this set-up and not near as easy as ours. When dropping just pull them back out and away you go. It also means you don't have as many slots in the sailcover.
What is the Dutchman?We use the Dutchman and have had pretty good results with it as a replacement for lazy jacks that we used on other boats. Both work reasonably well. The Dutchman requires pretty precise set-up and adjustment, but when done correctly, it is really convenient.