I totally agree. I find that I almost NEVER have to do a cooling flush. And the steam wand you are totally spot on. It is difficult to tame - only because it is different to most other machines. It comes down to wand placement. If the salesman, like Chris, or in my case Renzo shows you where to put the steam wand, you get instant microfoam. Like anything it isnt necessarily difficult with milk, just different angle and placement to most other machines.
I havent got much to compare with, but I love my Jnr.