I've been mulling over "convenient".

And, I think I'll add that to BOTH the pro & con lists.

SWCG are convenient, though in truth, I don't find them *that* convenient. I can, and have, operated multiple lightly used commercial pools ( = heavy residential use patterns ) with 2x per week treatment. Home pools can be operated easily enough with 1x per week IF they don't leak and IF their filters work.

The problem with 'convenient' is again the deception: you STILL need to manage pH, stabilizer, cleaning, and on concrete pools, alkalinity and calcium. SWCGs don't help with that, and often make pH management harder.

Few people can do care for their pools in less than 1x per week, with or without an SWCG.

Unfortunately many people DO spend less than 1x per week, leading to expensive and difficult problems.