I have a similar question - I don't have a SWG yet, starting the shopping and decision process and don't want to end up in the position of the OP. While technology is evolving and all things are fluid, what brand/model SWG is most likely to have continued support and parts? Price today means nothing if, when the time comes, parts are not available and I am forced to replace the entire system because a control board or cell is not available.
Along those same lines, are all Salt Cells the same or similar in size? I am thinking in terms of what happens when the time comes and I do have to replace the entire system. A controller is one thing, but a cell that requires a major reroute of the plumbing is another. And for those that have installed yourself, or changed your own cells, etc, which is better/easier to work with - a cell that is linear or one that diverts the water 90 degrees? I can see the ones that divert being easier to change the cell, but does the diversion slow water flow? Is this good or bad?