My old water softener finally gave up after 18 years of reliable service, replaced it with this GE GXSF30V. Everything went together smoothly and the installation was very straightforward. The only difference was the new unit was slightly shorter than the old one but a simple sturdy platform made with a couple of 2x4’s and some 1/2” plywood put it right where it needed to be. Holds much more salt than my old one which is great, the salt bin door is larger and easier to load and has a convenient beeper to let you know if the salt bin is getting low (you enter the salt level into the controller when you fill it). Follow the instructions, sanitize it after installing and you’re good to go. Feels GREAT to take soft water showers again! The one thing I changed around is the water supply for the toilet, I put that on hard water this time instead of soft water and I’d recommend doing that to prevent 
wasting soft water