I love it.
I get my salt r/o water premixed from my LFS, so for me that is the easiest and least time consuming part.
I heat the new water, and whilst its heating i syphon off and do a good scrub and clean of the tank, rinse the media bags etc and then i just put the new 50% clean water change in.
Takes me about an hour a week. I love it when the tank is all done, clean and in showroom condition again.
I personally cannot stand dirty substrate or manky algae / coralline covered glass so i am very thorough.