I have them. I can't compare the effort required to adjust the doors between the original Lotus system and Richard's brass hinges but I suspect, in spite of my less than spectacular door adjustment (one is pretty close and the other is not but will latch securely at least! - fixing that will be my next project!), I think they are a big improvement, if for no other reason than that you can take the door off and only worry about adjusting the height - none of the other adjustments will change, but they seem like they'd be easier than the original system.
Obviously brass will not rust like the original hinges. r.d. has a set of stainless steel hinges in the same style as the original system if you want to go that route.