Thinking of switching to a salt water pool
No it is not maintenance free.  A salt water pool is still a chlorinated pool but due to the salt levels it uses less chlorine.   I have had both pool types.   To sum it up the chlorine pool does require more daily maintenance as the chlorine levels have to be high but not too high.   Everything else though is easy on a chlorine pool.

The salt water pool only needs to be checked a couple times a week and usually serviced weekly.   It has higher start up costs and you have to watch for corrosion due to the salt.   I preferred the salt water pool but it wasn't a huge difference.   

(Most pool places will try to sell you a saltwater pool as it makes them more money - unless they think you will buy chlorine through them.   In my opinion salt water is probably cheaper in long run if your pool is in an open yard.  If my pool is near trees I would go chlorine as the salt water pools do not handle the extra bugs/leaves/stuff as well as the higher chlorinated pools.)