I've had a SWCG for a little over a year now and am happy with it. I travel a lot and don't have to worry about chlorine not being added if I am gone for a week or so. The initial start up cost was about 1000.00 for the system and the salt. In the beginning I had a constant fear the system would fail and I'd come home to a green mess but that has never happened. I like being able to control when the water is being chlorinated by when I run my pump.

YMMV but I'm a happy convert