Easy to install.   Old Kenmore gave up the ghost after 14 years.  This was a good deal at the Big Box store.    Took a couple of hours to install, just need to re-jig the plumbing which was customized for the previous softener.

Only reason I didn't give it 5/5 stars is that it immediately filled up with water, above the salt level (3 bags).  Will see if it corrects itself over the next few days and will watch for softer H2O.