I've had an Aqua Rite SWCG since 2004 and have been very satisfied with it.

Make sure you get a unit with a cell rated at least twice the gallons of your pool.

That Taylor salt test kit is generally the one that's recommended. Personally, I've found the AquaChek salt test strips to be accurate enough.

Also, to maximize cell life, the SWCG should only be used to maintain proper FC level. If you need to boost FC for any reason, use bleach or liquid chlorine to do so.